| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention can be used to plug tube face, for example in heating radiator manifolds. Heating and straining tubular billet if performed by revolving it about lengthwise axis and bringing it in contact with revolving tool head. Said head is turned to tube face at 0.1-8 rpm and 0 to 90 to tubular billet lengthwise axis. Friction speed in contact zone of tool and billet is selected to make 3-40 m/s. Tubular billet has machining allowance of 0.2-1 of the billet ID yet not exceeding machining tool respective size. ^ EFFECT: simplified procedure. ^ 1 tbl, 1 dwg, 1 ex |
