SCHRAUBE MIT EINER PARTIELL GEHÄRTETEN FUNKTIONSSPITZE UND VERFAHREN ZU IHRER HERSTELLUNG

摘要

Production of a screw made from a low-alloyed carbon steel comprises a hardening step carried out by rapid heating with a high energy transfer and subsequent quenching and limited to partial regions of the periphery of the functional tip. An Independent claim is also included for a screw produced by the above process.