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教科書にはない設計ノウハウ 板金設計の曲げ加工編

<p><img data-attachment-id&equals;"4244" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s&period;jpg&quest;fit&equals;640&percnt;2C480&amp&semi;ssl&equals;1" data-orig-size&equals;"640&comma;480" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s&period;jpg&quest;fit&equals;300&percnt;2C225&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s&period;jpg&quest;fit&equals;567&percnt;2C425&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4244" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;ebf55d10ee24160e36a0ec8ecee2d731&lowbar;s&period;jpg" alt&equals;"教科書にはない設計ノウハウ 板金設計の曲げ加工編" width&equals;"640" height&equals;"480" &sol;><br &sol;>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;98&period;1 -->&NewLine;<div class&equals;"quads-location quads-ad1" id&equals;"quads-ad1" style&equals;"float&colon;none&semi;margin&colon;0px&semi;">&NewLine;&NewLine;<&sol;div>&NewLine;<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;method&sol;design1&sol;">教科書にはない設計ノウハウ コスト編<&sol;a><&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;method&sol;design2&sol;">教科書にはない設計ノウハウ 公差編<&sol;a><&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;method&sol;design4&sol;">教科書にはない設計ノウハウ 板金設計のねじ穴編<&sol;a><&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;method&sol;design5&sol;">教科書にはない設計ノウハウ 板金設計の組み立て編<&sol;a><&sol;p>&NewLine;<p>日本の板金加工技術は世界に誇れる技術力があります。<br &sol;>&NewLine;板金加工は、低コストであるため、利用されることが多い分野。<br &sol;>&NewLine;折り紙みたいなものですから、加工前の材料は板ですから保管しやすいこともメリットです。<br &sol;>&NewLine;機械設計者として、この板金設計をマスターしておくことは必須。<br &sol;>&NewLine;私のノートから、抜粋して記事にしていますので参考にしていただければ幸いです。<br &sol;>&NewLine;板金設計はボリュームが多いため、シリーズ化して記事を投稿します。<&sol;p>&NewLine;<h3 class&equals;"style3b">内曲げR<&sol;h3>&NewLine;<p>内曲げRは、どれくらいにするべきなのか。<&sol;p>&NewLine;<blockquote><p>基本の推奨値: 内曲げR = 板の厚み(t)<&sol;p><&sol;blockquote>&NewLine;<p>しかし、材質によって大きく数字が変わりますので詳しくは基本の推奨値ではなく下記をご覧ください。<br &sol;>&NewLine;材質 : 最小内曲げR<br &sol;>&NewLine;SPCC&sol;SGCC&sol;SECC(鉄板) : 0&period;5t<br &sol;>&NewLine;A5052P(アルミ板) : 0&period;5t<br &sol;>&NewLine;SUS304-CP(ステンレス板) : 1t<br &sol;>&NewLine;SUS304-CSP(バネ用ステンレス板) : 3~4t<br &sol;>&NewLine;現実的にはステンレスなどの硬い材質以外は、これ以下でも問題ありません。<br &sol;>&NewLine;むしろ実際はほぼゼロであることが多い。<br &sol;>&NewLine;設計値としては鉄板やアルミ板だと、板厚の半分を最小内曲げRと設定して問題はありません。<br &sol;>&NewLine;ポイントは断面急変部を回避することにあります。<br &sol;>&NewLine;但し、下記形状の場合は、R &geqq; t としてください。<br &sol;>&NewLine;<img data-attachment-id&equals;"4264" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage1&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage1&period;png&quest;fit&equals;600&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"600&comma;400" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage1" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage1&period;png&quest;fit&equals;300&percnt;2C200&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage1&period;png&quest;fit&equals;600&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4264" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage1&period;png" alt&equals;"" width&equals;"600" height&equals;"400" &sol;><br &sol;>&NewLine;但し、下記形状の場合は、L &lE;6 t としてください。<br &sol;>&NewLine;<img data-attachment-id&equals;"4265" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage2&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage2&period;jpg&quest;fit&equals;736&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"736&comma;400" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage2" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage2&period;jpg&quest;fit&equals;300&percnt;2C163&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage2&period;jpg&quest;fit&equals;641&percnt;2C348&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4265" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage2&period;jpg" alt&equals;"" width&equals;"736" height&equals;"400" &sol;><&sol;p>&NewLine;<h3 class&equals;"style3b">コーナーヌスミ<&sol;h3>&NewLine;<p>折り曲げ加工は、振動や衝撃によって、ヒビ割れがコーナー部に生じることがあります。<br &sol;>&NewLine;これを防止するために、ヌスミと言われるスペースを確保します。<br &sol;>&NewLine;このヌスミを確保することにより、材質にストレスを与えず安全に加工することが出来ます。<br &sol;>&NewLine;但し、防滴を考慮したり、シールド(EMC)を考慮したりする場合はヌスミ寸法を極力減らしムリ曲げも可能とする設計で問題ありません。<&sol;p>&NewLine;<blockquote><p>ヌスミ = A<&sol;p><&sol;blockquote>&NewLine;<p>通常はこれに従うことです。<br &sol;>&NewLine;<img data-attachment-id&equals;"4266" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage3&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage3&period;jpg&quest;fit&equals;400&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"400&comma;400" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage3" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage3&period;jpg&quest;fit&equals;300&percnt;2C300&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage3&period;jpg&quest;fit&equals;400&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4266" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage3&period;jpg" alt&equals;"" width&equals;"400" height&equals;"400" &sol;><&sol;p>&NewLine;<blockquote><p>ヌスミ = t<&sol;p><&sol;blockquote>&NewLine;<p>極力避けたいですが、性能上必要な場合に使用する。<br &sol;>&NewLine;<img data-attachment-id&equals;"4268" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage4&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage4&period;jpg&quest;fit&equals;401&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"401&comma;400" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage4" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage4&period;jpg&quest;fit&equals;300&percnt;2C300&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage4&period;jpg&quest;fit&equals;401&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4268" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage4&period;jpg" alt&equals;"" width&equals;"401" height&equals;"400" &sol;><&sol;p>&NewLine;<h4 class&equals;"style4a">ムリ曲げ<&sol;h4>&NewLine;<p>通常でしたら文句を言われるやり方ですが、必要な場合は利用します。<br &sol;>&NewLine;<img data-attachment-id&equals;"4267" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage5&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage5&period;jpg&quest;fit&equals;401&percnt;2C330&amp&semi;ssl&equals;1" data-orig-size&equals;"401&comma;330" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage5" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage5&period;jpg&quest;fit&equals;300&percnt;2C247&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage5&period;jpg&quest;fit&equals;401&percnt;2C330&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4267" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage5&period;jpg" alt&equals;"" width&equals;"401" height&equals;"330" &sol;><br &sol;>&NewLine;板厚(t) : ヌスミ(A)<br &sol;>&NewLine;0&period;5~0&period;8mm : 1mm<br &sol;>&NewLine;1&period;0~1&period;2mm : 1&period;5mm<br &sol;>&NewLine;1&period;5~1&period;6mm : 2mm<br &sol;>&NewLine;2&period;0~2&period;5mm : 3mm<br &sol;>&NewLine;3&period;0~3&period;2mm : 4mm<br &sol;>&NewLine;3&period;5~4&period;0mm : 5mm<&sol;p>&NewLine;<h3 class&equals;"style3b">最小曲げ高さ<&sol;h3>&NewLine;<p>板を曲げる汎用金型の都合により、最小曲げ高さを意識しておく必要があります。<br &sol;>&NewLine;曲げ高さ寸法Hは、板厚(t)と内曲げ(r)により下記の式で求めることが出来ます。<&sol;p>&NewLine;<blockquote><p>H &equals; 3&period;5t &plus; r 以上<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4269" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage6&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage6&period;jpg&quest;fit&equals;690&percnt;2C250&amp&semi;ssl&equals;1" data-orig-size&equals;"690&comma;250" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage6" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage6&period;jpg&quest;fit&equals;300&percnt;2C109&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage6&period;jpg&quest;fit&equals;641&percnt;2C232&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4269" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage6&period;jpg" alt&equals;"" width&equals;"690" height&equals;"250" &sol;><br &sol;>&NewLine;但し、これは汎用金型が前提ですので、専用金型を別途作成する場合はこの限りではありません。<&sol;p>&NewLine;<h3 class&equals;"style3b">曲げ寸法許容値<&sol;h3>&NewLine;<p>汎用金型の形状の都合で、複数曲げの場合には、加工できる形状に限界があります。<br &sol;>&NewLine;許容できる寸法を記載します。<&sol;p>&NewLine;<blockquote><p>B &lE; 2A<br &sol;>&NewLine;C &geqq; 6<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4270" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage7&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage7&period;jpg&quest;fit&equals;300&percnt;2C546&amp&semi;ssl&equals;1" data-orig-size&equals;"300&comma;546" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage7" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage7&period;jpg&quest;fit&equals;165&percnt;2C300&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage7&period;jpg&quest;fit&equals;234&percnt;2C425&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4270" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage7&period;jpg" alt&equals;"" width&equals;"300" height&equals;"546" &sol;><&sol;p>&NewLine;<blockquote><p>A &geqq; 2B<br &sol;>&NewLine;B &geqq; 2C<br &sol;>&NewLine;D &geqq; 6<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4271" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage8&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage8&period;jpg&quest;fit&equals;450&percnt;2C546&amp&semi;ssl&equals;1" data-orig-size&equals;"450&comma;546" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage8" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage8&period;jpg&quest;fit&equals;247&percnt;2C300&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage8&period;jpg&quest;fit&equals;350&percnt;2C425&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4271" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage8&period;jpg" alt&equals;"" width&equals;"450" height&equals;"546" &sol;><br &sol;>&NewLine;但し、これは汎用金型が前提ですので専用金型を別途作成する場合は、この限りではありません。<&sol;p>&NewLine;<h3 class&equals;"style3b">曲げと穴との距離<&sol;h3>&NewLine;<p>穴に近い位置で板を曲げると穴が変形することがあります。<br &sol;>&NewLine;そこで、曲げと穴との距離を下記以上とします。<&sol;p>&NewLine;<blockquote><p>L &equals; 3&period;5t &plus; r<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4272" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage9&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage9&period;jpg&quest;fit&equals;666&percnt;2C315&amp&semi;ssl&equals;1" data-orig-size&equals;"666&comma;315" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage9" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage9&period;jpg&quest;fit&equals;300&percnt;2C142&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage9&period;jpg&quest;fit&equals;641&percnt;2C303&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4272" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage9&period;jpg" alt&equals;"" width&equals;"666" height&equals;"315" &sol;><&sol;p>&NewLine;<blockquote><p>L &equals; 2&period;5t &plus; r<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4273" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage10&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage10&period;jpg&quest;fit&equals;708&percnt;2C290&amp&semi;ssl&equals;1" data-orig-size&equals;"708&comma;290" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage10" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage10&period;jpg&quest;fit&equals;300&percnt;2C123&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage10&period;jpg&quest;fit&equals;641&percnt;2C263&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4273" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage10&period;jpg" alt&equals;"" width&equals;"708" height&equals;"290" &sol;><br &sol;>&NewLine;但し上記L寸法が確保できない場合、下表のようにヌスミAを設けるといいです。<&sol;p>&NewLine;<blockquote><p>( L ー A ) &geqq; t<br &sol;>&NewLine;B &geqq; C<br &sol;>&NewLine;D &geqq; 2t<&sol;p><&sol;blockquote>&NewLine;<p><img data-attachment-id&equals;"4274" data-permalink&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;memo&sol;design3&sol;attachment&sol;mage11&sol;" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage11&period;jpg&quest;fit&equals;720&percnt;2C420&amp&semi;ssl&equals;1" data-orig-size&equals;"720&comma;420" data-comments-opened&equals;"0" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"mage11" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage11&period;jpg&quest;fit&equals;300&percnt;2C175&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage11&period;jpg&quest;fit&equals;641&percnt;2C374&amp&semi;ssl&equals;1" class&equals;"aligncenter size-full wp-image-4274" src&equals;"https&colon;&sol;&sol;www&period;eskyjapan&period;com&sol;wp-content&sol;uploads&sol;2017&sol;10&sol;mage11&period;jpg" alt&equals;"" width&equals;"720" height&equals;"420" &sol;><&sol;p>&NewLine;<blockquote><p>t&colon;A<&sol;p><&sol;blockquote>&NewLine;<p>0&period;5~0&period;8mm: 1mm<br &sol;>&NewLine;1&period;0~1&period;2mm: 1&period;5mm<br &sol;>&NewLine;1&period;5~1&period;6mm: 2mm<br &sol;>&NewLine;2&period;0~2&period;5mm: 3mm<br &sol;>&NewLine;3&period;0~3&period;2mm: 4mm<br &sol;>&NewLine;3&period;5~4&period;0mm: 5mm<br &sol;>&NewLine;但し曲げ加工後に穴加工する場合は、この距離を無視できます。<br &sol;>&NewLine;その場合、加工コストが跳ね上がることを想定する必要があります。<br &sol;>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;98&period;1 -->&NewLine;<div class&equals;"quads-location quads-ad3" id&equals;"quads-ad3" style&equals;"float&colon;none&semi;margin&colon;0px&semi;">&NewLine;&NewLine;<&sol;div>&NewLine;<br &sol;>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;98&period;1 -->&NewLine;<div class&equals;"quads-location quads-ad4" id&equals;"quads-ad4" style&equals;"float&colon;none&semi;margin&colon;0px 0 0px 0&semi;text-align&colon;center&semi;">&NewLine;&NewLine;<&sol;div>&NewLine;<&sol;p>&NewLine;&NewLine;

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