Steel bonded carbide concave has good strength and toughness after
sintering,forging,heat treatment and hot extrusion. If the extrusion
pressure is above 500MPa,the die wall is easy to fracture.There are two
advantages of using steel bonded carbide punch.
1.It is not easy to rupture
2.The mold core is small, you can reduce the cost of the mold.
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