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Process for manufacturing casting and rolling 3004 alloy deep punching material

A manufacturing method, casting and rolling technology, applied in the direction of metal rolling, etc., can solve the problems of easy cracking, increase the cost of deep-drawing materials, and high process cost, and achieve the effect of excellent mechanical properties

Active Publication Date: 2010-12-29
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, casting-rolling materials are rarely used as aluminum alloy materials for deep-drawing parts, because the mechanical properties of aluminum alloy materials produced by casting-rolling method are difficult to meet the requirements of deep-drawing parts. production requirements, it is easy to produce technical problems such as cracking during deep drawing
Although the deep-drawn material produced by the hot rolling process has good mechanical properties, its process cost is relatively high, thus increasing the cost of the deep-drawn material

Method used

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  • Process for manufacturing casting and rolling 3004 alloy deep punching material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The manufacturing method of this embodiment goes through the following steps sequentially,

[0011] a. Casting and rolling, the aluminum alloy material marked as 3004 is subjected to conventional casting and rolling, and the thickness of the billet after casting and rolling is 8.5mm;

[0012] b. After the billet is cold-rolled to a thickness of 4.8mm, it is annealed, the annealing temperature is 360°C, and the annealing time is 14h;

[0013] c. After high-temperature annealing, the billet is cold-rolled through multiple passes to a finished product thickness of 0.4 mm, and then annealed to obtain the final product. The annealing steps are: firstly hold it at an annealing temperature of 180°C for 2 hours, and then heat it at an annealing temperature of 400°C Keep warm for 20h.

Embodiment 2

[0015] The manufacturing method of this embodiment goes through the following steps sequentially,

[0016] a. Casting and rolling, the aluminum alloy material marked as 3004 is subjected to conventional casting and rolling, and the thickness of the billet after casting and rolling is 8.5mm;

[0017] b. Anneal the blank after cold rolling to a thickness of 5mm, the annealing temperature is 400°C, and the annealing time is 12h;

[0018] c. After high-temperature annealing, the billet is cold-rolled through multiple passes to a finished product thickness of 0.4mm, and then annealed to obtain the final product. The annealing steps are: firstly hold at an annealing temperature of 210°C for 2 hours, and then at an annealing temperature of 420°C Keep warm for 18h.

[0019] Following is the test result of the product mechanical performance that above-mentioned embodiment makes:

[0020]

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Abstract

The invention belongs to aluminum alloy material manufacturing, which relates to a manufacturing method for cast-rolling 3004 alloy deep punching materials. The method sequentially goes through the following steps: a. cast-rolling, aluminum alloy materials labeled with 3004 go through conventional cast-rolling, the thickness of the blank after cast-rolling is 8.5mm; b. the blank is cold-rolled toa thickness of 4.8-5.4mm, then anneal is carried out, the annealing temperature is 300 to 400 DEG C, and the annealing time is 10-14 hours; c. the blank after high temperature anneal is cold-rolled for a plurality of times until the thickness of a finished product is achieved, then anneal is carried out, and a final product is obtained. The annealing step follows that: firstly, insulating for 2 to 4 hours under an annealing temperature of 180 to 220 DEG C, and then insulating for 15 to 25 hours under an annealing temperature of 380 to 440 DEG C. The mechanical properties of the deep punching materials which are produced by being based on the cast-rolling technology can completely satisfy the operating requirements of the deep punching products, while the cost of the deep punching materials is far lower than that of the deep punching materials produced by adopting a hot rolling technology.

Description

technical field [0001] The invention belongs to the manufacture of aluminum alloy materials, and relates to a method for manufacturing cast-rolled 3004 alloy deep-drawing materials. Background technique [0002] In the prior art, casting-rolling materials are rarely used as aluminum alloy materials for deep-drawing parts, because the mechanical properties of aluminum alloy materials produced by casting-rolling method are difficult to meet the requirements of deep-drawing parts. According to the production requirements, technical problems such as cracking are prone to occur during deep drawing. Although the deep-drawn material produced by the hot rolling process has good mechanical properties, its process cost is relatively high, thus increasing the cost of the deep-drawn material. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a manufacturing method of cast-rolled 3004 alloy deep-drawing material with low produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/46B21B1/22C22F1/04C21D8/04
Inventor 刘文彬刘倜张安乐
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD