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Stainless Steel Laminate The Important Factor

Stainless steel is widely used in industrial production because of its excellent properties, Stainless Steel Laminate but its stamping processing performance is poor, the surface of the parts is easy to scratch, and the mould easily produces adhesive tumor, which results in the stamping quality and production efficiency being greatly affected. This requires in the stamping process from the mold structure, mold materials, heat treatment and lubrication, to improve the quality of parts and die life, to better solve the problem of stainless steel stamping process.

(1) High yield point, high hardness, cold hardening effect is significant, prone to cracks and other defects.

(2) The thermal conductivity is worse than ordinary carbon steel, resulting in the need for large deformation force, blanking force, deep drawing force.

(3) The plastic deformation in the drawing is intense and hardened, and the thin plate is easy to wrinkle or drop bottom.

(4) Deep drawing mold is easy to appear adhesion tumour phenomenon, Stainless Steel Laminate causes the part outside diameter serious scratches.

(5) When drawing, it is difficult to achieve the desired shape.

(1) The quality of raw materials is also an important factor affecting stamping performance, and must be purchased in accordance with the standard raw materials. For the hard material, Stainless Steel Laminate the stamping process must be annealed before the machining performance can be improved.

(2) The structure and stamping speed of the die in order to improve the difficulty of drawing, you can make the edge of the pressure side of the rim. In this way, the billet is in contact with the blank and concave die under the action of the press side ring, which can make the material of the concave die fillet part bear the large blank pressing force, Stainless Steel Laminate thus improving the difficulty of drawing.

(3) The selection of anti-sticking mold material stainless steel drawing process, the main problem is the serious viscous mold, resulting in serious loss of mold, affecting the appearance of parts, so, to solve such problems must use the mold material resistant to sticking. At present, anti-sticking mold materials mainly include: ① cemented carbide bonded carbide, non-stick die, Stainless Steel Laminate high die life. The best resistance to stickiness, Stainless Steel Laminate but the cost of mold materials and heat treatment is higher, suitable for high-volume production. ② Copper Base Alloy: Cast aluminum bronze and hard aluminum bronze, non-stick die, life generally. Heat treatment is simple, suitable for small and medium-sized production. ③3054 Alloy cast iron, non-stick die, life generally. Need surface quenching, suitable for small and medium batch production.

(4) The stamping lubricant material in the drawing depth, to its proper lubrication, can reduce the friction coefficient between the material and the mold, Stainless Steel Laminate so that the drawing force drop, there is lubrication and no lubrication compared to the drawing force can be reduced by about 30%. and can improve the deformation degree of the material, reduce the limit drawing coefficient, so as to reduce the number of pull depth, the more important is to ensure the workpiece surface quality, do not cause surface abrasions.