Cold closed die forging of differential bevel gears used for a car has obvious advantages not only in saving material and energy consumption, reducing production costs and increasing productivity, but also in being an excellent mechanical property and a long life period of products.

Stroke topographic patterns in patients with internal carotid artery/middle cerebral artery stenosis or occlusion;

Study on cerebral blood flow in patients with ICA/MCA stenosis or occlusion by Xenon CT;

MR perfusion-weighted imaging for evaluation of surgery treatment in patients with ICA/MCA stenosis or occlusion;

Research Of Micro-System Auto Block System Between Stations;

Discussion on Key Problems of Speed-up Single Track Semi-automatic Block;

Numerical simulation of car steering knuckle obliterated extrusion forming;

Aimed at Jetta steering knuckle,the technology of two forging steps in one heat was presented,which combined precision pre-forging by extrusion-belt obliterated extrusion with open finish-forging.

In this paper, a new precision forming technology is put forward, which combines pre-forging by separable cavity die extrusion-belt type obliterated extrusion with post-forging.

Study on microstructure and properties of closed-die cold forging of bevel gear used in case of automobile differential;

Gear profile amendment method of bevel gear in closed-die cold forging;

By virtue of modern metallograph analyse technology,the size of grain,hardness and residual stress of bevel gear by closed-die cold forging is studied.