Influence of forging equipment on die life and forgings economy

Common forging hammer, anvil block hammer, hammer), mechanical press, screw press (including friction screw press and hydraulic press forging equipment, due to the load in the process of forging the speed (load properties) and hot contact with the mould of billet in the process of loading time and completed a forging load times are different, in a great extent and forgings economy affecting the service life of mould. For example, anvil hammers and percussive hammers are loaded at speeds up to 3m/s? 9m/s, screw press (including friction press) was 0.6m /s~ l.2m /s, while mechanical press and hydraulic press had the lowest loading speed, which was 0.06m /s? 0. lm/s and W. lm/so it can be seen that the loading speed of these common forging equipment is different by up to 1? Two orders of magnitude. If the load deformation degree of the same each time, the forging hammer and spiral chamber pressure machine mold die surface by hot metal of high speed scouring abrasion degree is greater than the hydraulic and mechanical press mold die chamber, and screw press and forging hammer intense, high temperature deformation, load and many times to complete a process, more aggravate the wear of dies.

It seems that the high loading speed will greatly reduce the life of the mold, but things often have two sides, different loading speed will bring different loading process hot blank and mold contact time difference, and the "contact time" difference will lead to the difference in the surface temperature of the mold chamber. As we all know, the increase of the surface temperature of the die chamber will cause the surface hardness of the die chamber to decrease, and even make the surface layer of metal phase change, greatly reducing its wear resistance.

Data show that the "contact time" of forging hammer is the shortest in the loading process, and the "contact time" of screw press is 10 times that of forging hammer. 20 times, and the "contact time" of the mechanical press is 3 times that of the screw press. Four times; In view of the hydraulic press production is mainly large forgings, its work (loading) time is long, its "contact time" is longer.



These are only the qualitative effects of forging and pressing equipment on die life. Actual production data show that the die life of general forging hammer is lower than that of screw press and mechanical press.

In addition, the cost of forging equipment (depreciation rate), energy consumption, maintenance and environmental pollution treatment and other operating expenses and productivity also affect the cost of forging. It can be seen that forging equipment has a significant impact on the life of forging die and the economy of forging, and it is very complex. Moreover, different equipment is suitable for the production of forging parts of different kinds, so in the selection or purchase of new forging equipment, we should carefully analyze according to the specific product structure.

this is forging parts produced by tongxin precision forging company