Explanation of processing technology of auto parts casting aluminum parts of aluminum extrusion die

1、 Random display of processing system process

Because of the function accuracy of the production manufacturing machinery the level of the actual operating staff, Zhejiang low-pressure casting production. The mold produced for processing is completely consistent with the design drawing but does report fees, so the mold produced is completely qualified, that is, the mold with processing defects. This kind of die will produce the product quality problem of profile material in extrusion production. For example, the machining accuracy of the die is harmful to the production of the quality problems of the profile material, such as the boning, aluminum dragging, wall deflection, line pattern, etc.; the perspective of the daily task belt is skewed. It will harm the forming of profile materials.

2、 Causes hazards of disadvantages

1. The accuracy of processing belt is high

The daily task belt immediately touches rubs with the metal material aluminum, which plays an important practical effect on the profile forming specification. However, when the processing staff milling the electrical grade, it is forbidden to confirm the daily task belt according to the section. The convex concave daily task belt does use arc connection in the middle, which will generate the bone shadow on the profile surface. In addition, the daily task has skewed visual angle insufficient flatness. Generally, due to the rough analogy of line cutting lines too much polishing, the level habits of the polishing staff produce the positive negative visual angle of the daily task, which makes the feeding of the mold more more slow faster in the application, frauds the mold design scheme repair staff, makes the forming of the profile more more difficult 。 The poor glossiness of the daily task belt the insufficient fillets in the import export trade are easy to produce more mechanical equipment marks on the profile surface.

2. The specification of empty knife is too large too small

When milling the multi-core empty cutter, because the rough milling die core is for all the staff, the middle wall thickness of each die core is processed, the processing staff often process according to the specification of the empty cutter ordered in advance in the engineering drawing, it is very easy to produce the too large empty cutter at the small die core the less invariance, the uneven thickness of the forming material is off the wall. However, in the processing of the hanging wall part with smaller specification of the empty cutter, especially the part close to the daily task belt, the spark discharge does produce the plug mold the drag aluminum grain is thick, the electric stage deviates the middle part of Zhejiang low-pressure casting during tool setting, which makes the empty tool of the hanging wall part unevenly, that is, one side of the empty tool is large, the other side of the empty tool is small, the hanging wall tends to be broken when extrusion molding, resulting in die reimbursement.