{"id":13465,"date":"2021-07-27T02:54:21","date_gmt":"2021-07-27T02:54:21","guid":{"rendered":"https:\/\/zawiiw746w.wpdns.site\/?p=13465"},"modified":"2024-02-03T07:13:37","modified_gmt":"2024-02-03T07:13:37","slug":"10-important-points-about-metal-sheet-bending","status":"publish","type":"post","link":"https:\/\/www.scoson.com\/ar\/10-important-points-about-metal-sheet-bending\/","title":{"rendered":"10 Important Points You Should Know About Metal Sheet Bending"},"content":{"rendered":"

Metal Sheet Bending is a stamping process that uses pressure to force the material to produce plastic deformation, thereby forming a shape with a certain angle and curvature. Commonly used bending includes V-shaped bending, Z-shaped bending, and anti-bending pressure equalization.<\/p>\n\n\n\n

\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/h3>\n\n\n\n

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\"Metal
\u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 R<\/figcaption><\/figure>\n\n\n\n

When the bend is a hypotenuse, it is most prone to bend distortion due to too small a bending height. As shown in the figure, in the original design, because the leftmost bending height is too small, it is easy to be twisted and deformed during bending, resulting in low bending quality. In the improved design, the left bending height can be increased or remove the part with a smaller bending height. Metal Sheet Bending<\/p>\n\n\n\n

\"\u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621
\u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u062a\u0634\u0648\u0647<\/figcaption><\/figure>\n\n\n\n

Metal Sheet Bending Radius<\/h3>\n\n\n\n

In order to ensure the bending strength, the bending radius of the sheet metal should be greater than the minimum bending radius of the material. The minimum bending radius R of various commonly used sheet metal materials is shown in the table, where t is the thickness of the sheet metal. Metal Sheet Bending<\/p>\n\n\n\n

\u0645\u0627\u062f\u0629<\/td>\u0644\u064a\u0646<\/td>\u0627\u0644\u0635\u0639\u0628<\/td><\/tr>
\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645<\/td>0<\/td>6 \u062a<\/td><\/tr>
\u0628\u0631\u0648\u0646\u0632 \u0627\u0644\u0628\u0631\u064a\u0644\u064a\u0648\u0645<\/td>0<\/td>4 \u062a<\/td><\/tr>
\u0646\u062d\u0627\u0633<\/td>0<\/td>2 \u062a<\/td><\/tr>
\u0633\u0628\u064a\u0643\u0629 \u0645\u0627\u063a\u0646\u064a\u0633\u064a\u0648\u0645<\/td>5 \u062a<\/td>13 \u062a<\/td><\/tr>
\u0633\u062a\u0627\u0646\u0644\u0633 \u0633\u062a\u064a\u0644<\/td>0.5 \u062a<\/td>6 \u062a<\/td><\/tr>
\u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u0643\u0631\u0628\u0648\u0646 \u0627\u0644\u0635\u0644\u0628
\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u0635\u0644\u0628 \u0645\u0646\u062e\u0641\u0636<\/td>		0.5 \u062a<\/td>4 \u062a<\/td><\/tr>
\u0627\u0644\u062a\u064a\u062a\u0627\u0646\u064a\u0648\u0645<\/td>0.7 \u062a<\/td>3 \u062a<\/td><\/tr>
\u0633\u0628\u0627\u0626\u0643 \u0627\u0644\u062a\u064a\u062a\u0627\u0646\u064a\u0648\u0645<\/td>2.6 \u0637\u0646<\/td>4 \u062a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Of course, the bending radius of sheet metal is not as big as possible. The larger the bending radius, the greater the bending rebound, and the harder it is to control the bending angle and bending height. Therefore, the sheet metal bending radius needs to be reasonably valued. Metal Sheet Bending<\/p>\n\n\n\n

\u064a\u0645\u064a\u0644 \u0645\u0635\u0646\u0639\u0648 \u0642\u0648\u0627\u0644\u0628 \u0627\u0644\u0635\u0641\u0627\u0626\u062d \u0627\u0644\u0645\u0639\u062f\u0646\u064a\u0629 \u0625\u0644\u0649 \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0646\u0635\u0641 \u0642\u0637\u0631 \u0627\u0646\u062d\u0646\u0627\u0621 \u064a\u0628\u0644\u063a 0 \u0628\u062d\u064a\u062b \u0644\u0627 \u064a\u0633\u0647\u0644 \u0627\u0631\u062a\u062f\u0627\u062f \u0646\u0635\u0641 \u0627\u0644\u0642\u0637\u0631 \u0628\u0639\u062f \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u060c \u0643\u0645\u0627 \u064a\u0633\u0647\u0644 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062d\u062c\u0645 \u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u0648\u0632\u0627\u0648\u064a\u0629 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621. <\/p>\n\n\n\n

However, bending with a bending radius of zero can easily cause external cracking or even breaking of the sheet metal bending. At the same time, the sheet metal bending strength is relatively low, especially for harder sheet metal materials, and the mold on the mold after a period of production Metal Sheet Bending<\/p>\n\n\n\n

The right angle will gradually become smoother, and the bending size will become difficult to control.<\/p>\n\n\n\n

In order to reduce the bending force and ensure the bending size, another method adopted by the sheet metal mold manufacturer is to increase the crimping process before the bending process. Of course, such a design will cause the sheet metal bending strength to be relatively low and easy to break and other defects. Metal Sheet Bending<\/p>\n\n\n\n

\u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/h3>\n\n\n\n

When the sheet metal is bent, it should be as perpendicular to the fiber direction of the metal material as possible. When the sheet metal is bent parallel to the fiber direction of the metal material, cracks are easily generated at the sheet metal bending, and the bending strength is low, and cracks are prone to occur. Metal Sheet Bending<\/p>\n\n\n\n

\u062a\u062c\u0646\u0628 \u0641\u0634\u0644 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u0628\u0633\u0628\u0628 \u0639\u062f\u0645 \u0627\u0644\u0642\u062f\u0631\u0629 \u0639\u0644\u0649 \u0627\u0644\u0636\u063a\u0637 \u0639\u0644\u0649 \u0627\u0644\u0645\u0627\u062f\u0629 \u0645\u0646 \u0627\u0644\u062c\u0630\u0631<\/h3>\n\n\n\n

When the sheet metal is bent, it is often because other features are too close to the sheet metal part, which results in the inability to press the material and cannot be bent or the bending is severely deformed. Generally speaking, at least 2 times the thickness of the sheet metal must be guaranteed above the root of the sheet metal bending. In addition to the distance of the bending radius, there are no other features that block the pressing of the sheet metal during bending. Metal Sheet Bending<\/p>\n\n\n\n

In the original design, as shown in the figure below, the reflexed flattening position is too close to the root of the sheet metal bending, causing the sheet metal to be bent and the material cannot be pressed and the bending fails; in the original design, as shown in the lower part of the figure, the sheet metal is pulled too close Bending the roots makes the bending impossible. Metal Sheet Bending<\/p>\n\n\n\n

At this time, you can move the extraction to a position far away from the sheet metal root. If the extraction and bending positions cannot be moved due to design requirements, you can bend the root corresponding to the extraction Add a process cut to ensure smooth bend. Metal Sheet Bending<\/p>\n\n\n\n

\"\u0623\u062c\u0632\u0627\u0621
\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/figcaption><\/figure>\n\n\n\n

\u062a\u0623\u0643\u062f \u0645\u0646 \u062b\u0646\u064a \u0627\u0644\u0641\u062c\u0648\u0629 \u0648\u062a\u062c\u0646\u0628 \u062a\u062f\u0627\u062e\u0644 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/h3>\n\n\n\n

Due to the existence of sheet metal bending tolerances, it is necessary to ensure a certain bending gap in the direction of motion of sheet metal bending to avoid interference during bending and cause bending failure. See below. Metal Sheet Bending<\/p>\n\n\n\n

\"\u062a\u062f\u062e\u0644
\u062a\u062f\u062e\u0644 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/figcaption><\/figure>\n\n\n\n

As shown in the above figure, the bending sequence of the parts is that the upper side is bent first, and the right side is bent second. In the original design, there is no gap between the two bends. When the upper side is bent, the right side is bent again, Metal Sheet Bending<\/p>\n\n\n\n

Due to the existence of sheet metal bending tolerances, it is likely that the right side will interfere with the upper side during the bending process. In the improved design, at least a 0.2mm gap between the right side and the upper side can be effectively avoided.<\/p>\n\n\n\n

\u0636\u0645\u0627\u0646 \u0642\u0648\u0629 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/h3>\n\n\n\n

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\"\u0636\u063a\u0637
\u0636\u063a\u0637 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621<\/figcaption><\/figure>\n\n\n\n

\u062a\u0642\u0644\u064a\u0644 \u0639\u0645\u0644\u064a\u0629 \u062b\u0646\u064a \u0627\u0644\u0635\u0641\u0627\u0626\u062d \u0627\u0644\u0645\u0639\u062f\u0646\u064a\u0629<\/h3>\n\n\n\n

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    \n
  1. Short side first, long side first: Generally speaking, when all four sides are bent, folding the short side first and then the long side is beneficial to the processing of the workpiece and the assembly of the bending mold. Metal Sheet Bending<\/li>\n\n\n\n
  2. \u0627\u0644\u0645\u062d\u064a\u0637\u064a \u0623\u0648\u0644\u0627\u064b \u060c \u062b\u0645 \u0627\u0644\u0648\u0633\u0637: \u0641\u064a \u0638\u0644 \u0627\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u0639\u0627\u062f\u064a\u0629 \u060c \u064a\u062a\u0645 \u062b\u0646\u064a\u0647 \u0639\u0627\u062f\u0629\u064b \u0645\u0646 \u0645\u062d\u064a\u0637 \u0642\u0637\u0639\u0629 \u0627\u0644\u0639\u0645\u0644 \u0625\u0644\u0649 \u0645\u0631\u0643\u0632 \u0642\u0637\u0639\u0629 \u0627\u0644\u0639\u0645\u0644.<\/li>\n\n\n\n
  3. \u062c\u0632\u0626\u064a \u0623\u0648\u0644\u0627\u064b \u062b\u0645 \u0643\u0627\u0645\u0644: \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0647\u0646\u0627\u0643 \u0647\u064a\u0627\u0643\u0644 \u062f\u0627\u062e\u0644 \u0642\u0637\u0639\u0629 \u0627\u0644\u0639\u0645\u0644 \u0623\u0648 \u062e\u0627\u0631\u062c\u0647\u0627 \u062a\u062e\u062a\u0644\u0641 \u0639\u0646 \u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621 \u0627\u0644\u0623\u062e\u0631\u0649 \u060c \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u062a\u0643\u0648\u0646 \u0647\u0630\u0647 \u0627\u0644\u0647\u064a\u0627\u0643\u0644 \u0645\u062b\u0646\u064a\u0629 \u0623\u0648\u0644\u0627\u064b \u062b\u0645 \u062a\u0646\u062b\u0646\u064a \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0623\u062e\u0631\u0649.<\/li>\n\n\n\n
  4. Consider the interference situation and arrange the bending sequence reasonably: the bending sequence is not static, and the processing sequence should be adjusted appropriately according to the bending shape or obstacles on the workpiece. Metal Sheet Bending<\/li>\n<\/ol>\n\n\n\n

    \u062a\u062c\u0646\u0628 \u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621\u0627\u062a \u0627\u0644\u0645\u0639\u0642\u062f\u0629<\/h3>\n\n\n\n

    Similarly, the more complex the sheet metal bending process,<\/a> the higher the mold cost, the lower the bending accuracy, and the complex mold bending may cause a waste of parts and materials. Therefore, when the sheet metal part has a complex structure, it can be considered to split the complex bending part into multiple parts, which will help the cost and improve the product quality. Metal Sheet Bending<\/p>\n\n\n\n

    \"\u062a\u062d\u0643\u0645
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      \n
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      \"\u0627\u0644\u0627\u0646\u062d\u0646\u0627\u0621
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        \n
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          \n
        • \u062d\u0644<\/li>\n<\/ul>\n\n\n\n

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          \"\u062b\u0646\u064a
          \u062b\u0646\u064a \u0627\u0644\u0645\u0637\u0627\u0637<\/figcaption><\/figure>\n\n\n\n

          <\/span>\u0627\u0644\u0648\u0642\u062a \u0627\u0644\u0645\u0642\u062f\u0631 \u0644\u0644\u0642\u0631\u0627\u0621\u0629: <\/span>10<\/span> \u0627\u0644\u062f\u0642\u0627\u0626\u0642<\/span><\/p>\n\n\n\n

          <\/p>","protected":false},"excerpt":{"rendered":"

          Metal Sheet Bending is a stamping process that uses pressure to force the material to produce plastic deformation, thereby forming<\/p>","protected":false},"author":1,"featured_media":13487,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[1104,1488,907],"class_list":["post-13465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-brake","tag-bending-indentation","tag-bending-interference","tag-sheet-metal-bending"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.scoson.com\/wp-content\/uploads\/2021\/07\/sheet-bendig-1.jpg","_links":{"self":[{"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/posts\/13465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/comments?post=13465"}],"version-history":[{"count":0,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/posts\/13465\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/media\/13487"}],"wp:attachment":[{"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/media?parent=13465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/categories?post=13465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.scoson.com\/ar\/wp-json\/wp\/v2\/tags?post=13465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}