Numerical and Experimental Research on Cold Compression Deformation Method for Reducing Quenching Residual Stress of 7A85 Aluminum Alloy Thick Block Forging

Table 4

Residual stress of quenched and compressed specimens.

Compression value	direction (MPa)	direction (MPa)	direction (MPa)
0%	−174.9	−156.7	−150.6
1%	7.0	53.4	−5.9
2%	28.2	33.7	18.3
3%	22.4	65.3	19.1
4%	64.9	32.4	−22
5%	17.8	20.8	−0.1