A process for producing a rope-like spring element semi-finished product, of a spiral spring element, a tool for machining of a rope-like spring element semi-finished product, a device for the manufacture of a spiral spring element

摘要

A process for producing a rope-like spring element semi-finished product (10), comprising the steps of:a) providing an elastically and reversibly compressible spring - core body (20) of a the spring - core body (20) surrounding, at least one fiber - filament (32) having a reinforcing fiber - covering (30);b) the impregnation of at least of the reinforcement fiber - covering (30) with a liquid or pasty, hardenable matrix material (78), and thereby establishing a temporary mutual arrangement of the spring - core body (20) and the reinforcement fiber - covering (30) and forming a predetermined cross-sectional shape of the spring element semi-finished product (10),the spring element semi-finished product (10) in the course of impregnation and / or after the impregnation is compressed and is reversibly deformed elastically and in this case, and wherein during the compression of the spring - core body (20) is compressed and thus by means of the spring - core body (20) a against the inner side of the reinforcement fiber - covering (30) is directed counter pressure is generated.