Huiping Qi

TL;DR: In this paper, a casting-rolling compound forming technology was proposed to produce a bearing ring by taking the typical 42CrMo slew bearing as an object, and the design criteria of the main casting-rolled forming parameters were put forward through theoretical analysis.

TL;DR: In this article, the influence of the deformation parameters on the metadynamic recrystallization of the as-cast 42CrMo steel after normalizing and tempering during hot compression is investigated.

TL;DR: In this paper, the deformation characteristics of 25Mn steel were investigated by compression tests and then processing maps were established, and the results showed that softening effect plays a dominant role in higher temperatures of 1050-1150 ǫ c and strain rates lower than 0.1 s−1.

TL;DR: In this article, the shape and performance controllability of metallic components can realize the simplification and high-reliability of manufacturing process on the premise of satisfying the requirement of macro/micro-structure.

TL;DR: In this article, the effects of feed rate and tempering temperature on the microstructure were studied by optical microscopy and scanning electron microscopy, and the results showed that when the feed rate of the idle roll increases, the degree of grain refinement becomes slightly smaller and the average grain size is approximately 44μm through the whole thickness of the rolled ring.