?? A steering arm, made from a three piece weldment was creating problems in manufacturing. It was converted to a one piece impression die hot forging at a 13% reduction in weight and reduced manufacturing cost. ?? A cast hub for a large power shovel in a coal field failed, causing an estimated downtime of four to six weeks at a cost of $4000 per hour. The hub was slightly redesigned as an open...

Considering heavy forged parts presented that water spray is an appropriate technique as quenching operation. In general, the rapid cooling causes residual stress field due to the dis-homogeneity of the distribution of temperature in the part and the different microstructural phases. In comparison with other conventional quenching methods, spray-quenching method could have a capability to contr...

In the article, from total set of dimensions crankshaft forgings, geometric accuracy indicators reflecting their complex spatial warping - diametrical root and connecting rod necks, angular deviations curvature third neck, transverse displacement along die line are highlighted. To estimate value according to selected during period durability engravings inserts, a batch forgings was measured, fo...