Method of tightening test for cylinder head bolts

摘要

Because "Method of Tightening Test for Threaded Fasteners" had been enacted, setting the method of tightening and the evaluation of the tightening characteristic value of the bolted joint became easy. However, the examination result at the firstterm cannot be used for the angle control method. This report describes the development of the tightening test facility for multibolted joint and the elastic region angle control method of the cylinder head bolt of the automobile engine.