Patent ID: 9662741
Date: 2017-05-30
CPC Classifications: B21D,B23K,Y10T

Claim:
1. A metal forming method for forming a second member comprising a second metal to be in contact with at least one first member comprising an aluminum alloy so that the at least one first member is bonded to the formed second member, the metal forming method comprising: a first step of arranging the at least one first aluminum alloy member on a bottom surface in a cavity of a die that has been heated to a bonding temperature at which a liquid phase percentage in the at least one first aluminum alloy member is from 5 to 35%; a second step of placing the second member over the top surface of the die and over the cavity of the die; and a third step of spraying a gas onto the second member to deform a shape of the second member so that the second member follows a shape of the cavity of the die and bonding a part of a lower surface of the second member and an upper surface of the at least one first aluminum alloy member having the bonding temperature.