Research and application of theory technology and equipment on gear precision plastic forming
Gears are widely used in machinery,automobile and aerospace equipment industries as the core foundation parts of transmis-sion system.Traditional manufacturing technique for gear is metal cutting process,with low material utilization and long processing cycle,especially metal flow lines are cut off,which damages gear performance and cannot meet the development needs of high-end equipment.Gear precision plastic forming manufacturing technology has the characteristics of energy saving,material saving,high efficiency and high quality,which is the development direction of high performance gear manufacturing.The gear precision plastic forming theory method was described,and the characteristics of the precision forming technology for bevel spur gear,cylindrical spur gear and cylindrical helical gear at home and abroad were analyzed.The typical gear precision forming equipments and production lines were introduced,and the applica-tions of gear rotary forging precision forming without cutting and forging precision forming were summarized.Besides,the new methods of multi-freedom envelope forming for bevel helical gear,and forging for non-circular gear were presented,which provide a reference for the researches and applications of technologies and equipments of high performance gear manufacturing without cutting.
NETL
NSTL
万方数据
维普
