Forming technology of ultra-deep taper thin-wall part
A forming process and technology of thin-walled parts, which are applied in the field of deep drawing of thin-plate and ultra-deep conical parts, can solve the problems of material cracking and uneven wall thickness, and achieve the effect of high production efficiency
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[0020] The following combination Figure 1-Figure 8 Explain this process:
[0021] 1. Blanking the bowl. Coat the surface of 10 steel strip with thickness t=0.7mm with lubricating oil (trichloroethylene C12=CHC1 thinner and SH150 forming oil are prepared at 1:5), and then put it into the blanking punching mold with blank holder , Use a 400kN open punch for punching, blanking size D = Ф88mm, the workpiece after punching is a cylindrical part with a bottom, its inner diameter d = Ф45mm, height h = 34mm, bottom fillet r = 6mm, workpiece thickness t=0.7mm.
[0022] 2. Thinning and deepening. The workpiece after blanking and punching is placed in the thinning and drawing die, and punched with a 400kN open punch. After thinning and drawing, the diameter d1=Ф35.5mm is the same as the inner diameter of the large end of the tapered hole of the finished product, and the barrel wall is changed from t= The 0.7mm thinning is t'=0.55mm which is equal to the finished wall thickness t'=0.55mm, ...
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