Method of manufacturing clad bar

Details Method of manufacturing clad bar Method of manufacturing clad bar

B - Operations, Transporting

23

K

80/31, 80/51, 78

B23K 20/04 (2006.01) B21B 1/20 (2006.01) B21C 37/04 (2006.01) B21B 1/38 (2006.01)

Patent

CA 1300931

ABSTRACT OF THE DISCLOSURE The present invention relates to a method of manufac- turing a clad bar and is basically characterized in that a columnar core member is fitted in a cylindrical outside lay- er member and the resulting assembly is heated, and then the heated assembly is rolled by a rotary mill provided with three or more cone type rolls to integrate the core member and the outside layer member, and is additionally character- ized in that, in order to prevent unnecessary substances, such as oxides, from being formed on an interface between the core member and the outside layer member, the assembly is tightly welded at both ends thereof under reduced press- ure or under vacuum or the assembly is cold drawn, the as- sembly thus welded or cold drawn is then heated and subsequ- ently rolled by a rotary mill. Thus, an intermetallic com- pound layer formed between the core member and the outside layer member can be thinned, whereby improving bond strength.

543584

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