Method for producing V-shaped grooves for a multiple splicing device for glass fibre bundles and device for carrying out the method

摘要

In the method, a precision punch (1) which gives the surface the final configuration, is pressed into the heated material (glass, glass ceramic). Thereafter, the material and punch are cooled, firstly rapidly and then slowly. The punch (1) consists of hard metal. Carbon and/or sulphur compounds can be used as parting compounds. <IMAGE>