| 摘要 |
The invention relates to a method for producing at least one hollow valve (1) for gas exchange, in particular for internal combustion engines. It is essential to the invention that a) a bore (4) is introduced into a valve shaft (2) and into a valve head (3), b) the depth (t) of the bore (4) is measured and the at least one hollow valve (1) is washed at least once, c) the at least one hollow valve (1) is provided in a retaining device (5), d) the retaining device (5) together with the hollow valve (1) is oriented with respect to an associated electrode (6), e) the associated electrode (6) is moved in relation to the hollow valve (1) and is inserted into the bore (4) of the hollow valve, f) the bore (4) is processed by means of ECM porcesses, in particular in the region of the valve head (3), g) the associated electrode (6) is removed from the hollow valve (1), h) the at least one hollow valve (1) is rinsed and/or preserved, i) the remaining wall thickness (w) of a valve bottom (9) is measured. |
