Post forming method of aluminum pot body

Abstract

A secondary shaping method for an aluminum boiler body includes the following steps: (1) an aluminum sheet that is sheared to be punched is taken and placed into a holding domain of a first cavity die and a first convex die is pressed down to the depth of h, so as to be shaped into a rough aluminum boiler body; (2) the rough aluminum boiler body is taken and inversely placed on a second convex die and a second cavity die is pressed down to the deepest point of H, so as to be shaped into a finished aluminum boiler body; wherein, the inner wall of the first cavity die and the outer wall of the first convex die are all matched with the wall of the aluminum boiler body; the first convex die is arranged above the first cavity die; the middle part of the first cavity die is provided with a first pushing block that can descend after being stressed; the opening part of the first cavity die is provided with the holding domain along the edge; the outer wall of the second convex die and the inner wall of the second cavity die are all matched with the wall of the aluminum boiler body; the second cavity die is arranged above the second convex die; the middle part of the second cavity die is provided with a second push block that can life after being stressed; the opening part of the second cavity die is provided with an aluminum forming domain along the edge; besides, h is more than or equal to 0.7H and is less than or equal to 0.95H. The method of the invention has the advantages of large attenuation and low device investment cost, etc.

Description

technical field [0001] The invention relates to a processing method for an aluminum pan body, in particular to a secondary molding method for an aluminum pan body. Background technique [0002] Existing pots are generally made of iron or aluminum. Iron pots are heavy, difficult to shape, and large-scale production is greatly limited. Made of 1100 pure aluminum or 3003 aluminum alloy, it has the advantages of light weight, easy molding, low cost, high thermal efficiency during use, and no rust. It is widely manufactured and used in the field of cooking utensils. [0003] At present, there are mainly two processing methods for aluminum pots: die-casting and stretching. , the production efficiency is low, and it is rarely used by production enterprises now; the stretching method utilizes the good ductility of aluminum, and uses a special mold to extrude and stretch the sheared aluminum sheet into an aluminum pot body. This processing method has high production efficiency. Adv...

AI Technical Summary

Problems solved by technology

This patent improves the production process of the aluminum pot body to a certain level, but there are still the following deficiencies. Due to the use of one-time molding, it has high requirements for the precision of the mold device and the material of the mold itself. Because this kind of equipment needs to be imported from abroad , the investment is huge, the thinning of the thin wall of the pot body is less than 40% when stretched, and the space saving of the material can be greatly improved

Images