Production requirements for stretched parts

Every product has a certain standard, the following is here to introduce the production requirements of stretch parts:

　　1) The fillet radius of the bottom and wall, flange and wall of the drawing part, and the four corners of the rectangular part should be appropriate. Take the fillet radius of the bottom and the wall of the drawing part 1pru003d1.5mm, mm5.1r2p, deep drawing The fillet radius between the flange and the wall of the piece is mm2rd1, mm5.1r2d;

　　2) The shape of the drawn part should be as simple and symmetrical as possible, and it should be deep-drawn at one time as much as possible;

　　3) For parts that need to be drawn multiple times, under the premise of ensuring the necessary surface quality, the inner and outer surfaces should be allowed to have traces that may be produced during the drawing process; (Guide: How to solve the natural aging cracking of the drawn parts)

　　 4) Under the premise of ensuring the assembly requirements, a certain slope of the side wall of the drawn part shall be allowed;

　　5) In the dimensioning of deep-drawn parts, it should indicate the guaranteed external dimensions or the internal dimensions, and the internal external dimensions cannot be marked at the same time. For drawing parts with steps, the dimension in the height direction should generally be based on the bottom. If the upper part is the benchmark, the height dimension is not easy to guarantee;

　　6) The distance between the bottom or flange of the deep drawing piece and the side wall of the hole should be appropriate.