Cold extrusion forming die fixture and cold extrusion forming method for aluminum rear covers of cellphones

Abstract

The invention discloses a cold extrusion forming die fixture for aluminum rear covers of cellphones. The cold extrusion forming die fixture comprises a female die and a male die. The female die comprises a female die body, a compression ring, a female die plate, a cushion block A, a cushion block B and the like. The male die comprises a male die body, a compression ring, a male die base, a nut, a cushion block C, a cushion block D, a cushion block E, a die base plate and the like. The invention further discloses a cold extrusion forming method for the aluminum rear covers of the cellphones. The cold extrusion forming die fixture and the cold extrusion forming method have the advantages that a vertical multi-connecting-rod toggle rod type cold forging press machine is used technologically for performing one-time cold extrusion forming on square aluminum blanks to enable the blanks to have shapes and sizes required by the aluminum rear covers of the cellphones after coating the blanks with graphite or lubricant powder, so that products acquired from cold extrusion forming have fine grains and compact textures, production efficiency is improved, product weight is reduced, and raw materials and manpower are saved; original methods such as punching, milling, engraving and digging are replaced, so that effects of chipless forming, energy conservation and environment protection are achieved, production cost is reduced remarkably and economic benefit is improved greatly.

Description

technical field [0001] The invention relates to a cold extrusion molding die fixture for the back cover of an aluminum material mobile phone. [0002] The invention also relates to a cold extrusion molding method for the back cover of the aluminum material mobile phone. It belongs to the field of metal forming. Background technique [0003] The aluminum mobile phone back cover is used for the back cover of the mobile phone. Aluminum mobile phone back cover is light in weight, less material, energy-saving and environmentally friendly. Compared with plastic, it has better flexibility and is one of the important components of the new generation of mobile phones. At present, domestic enterprises produce the back cover of aluminum material mobile phone: one is to blank the thick aluminum sheet and process it through engraving, milling, digging, etc.; Road or more), and multiple tempering treatments are required, the process is complicated, the process is long, time-consuming a...

AI Technical Summary

Problems solved by technology

At present, domestic enterprises produce the back cover of aluminum material mobile phone: one is to blank the thick aluminum sheet and process it through engraving, milling, digging, etc.; Road or more), and multiple tempering treatments are required, the process is complicated, the process is long, time-consuming and labor-intensive, the production speed is slow, the operation safety factor is low, and the manufacturing cost is extremely high

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