The whirl-machining process is a precise, efficient, and promising machine for manufacturing workpieces over the milling process. At same time, roller-gear cam has advantages other cam-follower system. However, not been applied to manufacture cam. Therefore, this paper proposes novel method using Mathematical modeling described generating cam, roller, whirl-milling tool surface. A CNC its coord...

Isometric modification is proposed as a new method of axial modification of spur bevel gear. Based on the gear geometry theory and the normal meshing motion equation of gear pairs, changes of meshing points and angles are analyzed and the effect of axial modification on meshing movement of gear pairs is discussed. After that, a method of drawing spherical involute with the aid of SolidWorks sof...

This thesis focuses on reliability when testing gear efficiency and on how gear mesh efficiency can be increased without detrimental effects on the gears. Test equipment commonly used in gear research was analysed to identify important parameters for gear efficiency testing. The effect of the bearing model’s load-dependent losses on gear mesh efficiency was also investigated. Two different surf...

Older people may be advised to switch from manual to automatic gear shifting, because they may have difficulties with dividing their attention between gear shifting and other driving tasks such as perceiving other traffic participants. The question is whether older drivers show a better driving performance when using automatic gear shifting instead of manual gear shifting. Twenty young and twen...

Abstract The precision of gears has a major influence on the quality transmission. If gear cannot be finished by grinding, generating tool becomes essential. Archimedean spiral toothline cylindrical are obtained reciprocate meshing using milling cutter built up individual cutters, organized in groups. profiles edges must realized with minimal profile error. In order to ensure and meshed tooth s...