半固态6061合金流变铸-锻成形及组织均匀性

谭建波; 杨帅; 李祎超

doi:10.15980/j.tzzz.2015.06.01

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半固态6061合金流变铸-锻成形及组织均匀性
Forming Process and Microstructure Uniformity of Semi-solid Rheological Casting-Forging 6061 Alloy
2015年35卷第6期页码：561-565
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.06.01

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[1]谭建波,杨帅,李祎超.半固态6061合金流变铸-锻成形及组织均匀性[J].特种铸造及有色合金,2015,35(06):561-565.

Tan Jianbo, Yang Shuai, Li Yichao. Forming Process and Microstructure Uniformity of Semi-solid Rheological Casting-Forging 6061 Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(6):561-565.
[1]谭建波,杨帅,李祎超.半固态6061合金流变铸-锻成形及组织均匀性[J].特种铸造及有色合金,2015,35(06):561-565. DOI： 10.15980/j.tzzz.2015.06.01.

Tan Jianbo, Yang Shuai, Li Yichao. Forming Process and Microstructure Uniformity of Semi-solid Rheological Casting-Forging 6061 Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(6):561-565. DOI： 10.15980/j.tzzz.2015.06.01.

摘要

采用分析软件测定了6061合金的冷却曲线

并对不同温度下合金的初生固相率进行了测试。利用H1F100型伺服驱动压力机及杯型试验模具

进行了半固态6061合金流变铸-锻成形

研究了合金温度、成形压力、上型温度、保持时间等工艺参数对半固态6061合金成形性的影响

探讨了工艺参数及热处理对半固态6061合金流变铸-锻成形件组织均匀性的影响。结果表明

在一套模具内

完成半固态铸造和半固态锻造即半固态铸-锻成形是可行的;合金温度在645℃

上型温度为300℃

下型温度为350℃

成形比压为105 MPa

保持时间为0

s时

可得到组织均匀的试件。

Abstract

The cooling curve of 6061 alloy was determined by analysis software

and primary solid fraction was tested at different temperatures.Using H1F100 servo press and cup type test mold

the 6061 semisolid alloy rheological casting-forging forming was carried out.Influences of parameters

such as alloy temperature

forming pressure

upper mould temperature

holding time

on the formability of semi-solid 6061 alloy were researched.The influences of technological parameters and heat treatment on microstructure uniformity of rheological casting-forging semi-solid 6061 alloy were discussed.The results show that

the semi-solid casting and semi-solid forging as well semi-solid casting-forging are feasible within a set of mold.The uniform microstructure in the alloy can be obtained at 645℃

the upper mould temperature of 300 ℃

the down mould temperature of 350 ℃

forming specific pressure of 105 MPa

and duration 0sto 4s.