TAILIEUCHUNG - Wiley SolidWorks 2009 Bible Part 12

Tham khảo tài liệu 'wiley solidworks 2009 bible part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Part VII Working with Specialized Functionality The Stopping Face turns a special color and so do any faces that are selected in the Faces to Remove selection box. Faces to Remove means that those faces will be cutouts in the sheet metal part. Another aspect of the forming tool is the orientation sketch. The orientation sketch is created automatically by using Convert Entities on the Stopping Face. If you have used this function in any of its previous versions then you know that this latest iteration is far easier to create than before. However to me it looks like the orientation sketch has taken a step backwards. The orientation sketch cannot be manually edited and so for forming tools where footprints are symmetrical but other features in the tool are not you cannot tell from the sketch which direction the forming tool should face. Orientation could be managed more easily in earlier versions of forming tools because the placement sketch was just a manually created sketch. When creating a forming tool you must remember to build in generous draft and fillets and not to build undercuts into the tool. Also keep in mind that when you have a concave fillet face on the tool the radius becomes smaller by the thickness of the sheet metal as a result you must be careful about minimum radius values on forming tools. If there is a concave face on the tool that has a .060-inch radius and the tool is applied to a part with a .060-inch thickness then the tool will cause an error because it forms a zero radius fillet which is not allowed. Errors in applied forming tool features cannot be edited or repaired except by changing forming tool dimensions. Once the forming tool is created special colors are used for every face on the part. For example the Stopping Face is a light blue color Faces to Remove are red and all of the other faces are yellow. Figure shows the small addition that is made to the FeatureManager when you make a part into a forming tool. This feature did not

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