必威体育精装版复习题（The latest review questions）.docVIP

必威体育精装版复习题（The latest review questions） Punch skill review question bank Completion 1, stamping processing of the three elements: punch, mold, materials. 2, progressive die is also called continuous die, also known as skip die. 3, bending parts require multiple bending, the bending sequence is usually the first curved corners, bending angle; previous bending should be considered after bending with reliable positioning, after bending not forming the shape of the previous image 4, bending, in order to prevent deviation, can use pressing and positioning. 5, according to the stamping process combination method is divided into Dan Chongmo, compound mold, progressive die 6, according to the stamping process combination method, single process module and multi process continuous die. 7. The section of the parts consists of fillet belt, bright band, fracture band and burr. 8, in order to determine the shape and size of the blank before bending, it is necessary to calculate the unfolding dimensions of the bending parts. 9, the uneven parts into the mold, flat process called leveling. 10. The size of the die handle of the small punch determines the size of the upper die handle. 11 in the bending deformation zone, the inner fiber is subjected to compressive strain laterally, while the outer fiber is subjected to tensile strain, while the neutral layer remains unchanged. 12. The leftover material between the blanking piece and the blanking piece and the side of the strip is called the edge. 13, tensile quality problems may occur when wrinkling and cracking. 14, the process hole is for the production and manufacturing process needs, in the process of adding holes, rather than products need holes. 15. The inner hole of the round washer belongs to the punching hole and the shape belongs to the blanking. 16, take the edge is a kind of process waste, but can compensate the positioning error and the width of the sheet is holding parts qualified: error, take the edge can also improve strip