摘要
分析并介绍一机车启动齿轮坯的镦挤工艺特点及模具,其矩形花键由传统机械加工改为冷镦挤压成形,齿顶圆一次镦挤成形,具有生产效率高,产品质量好,产品尺寸稳定,晶粒细小等特点,同时对冷镦挤压成形模的设计与制造进行详细介绍。
The characteristic of upsetting and extruding process and a die for a locomotive starting gear blank were studied.The rectangle spline of the gear was made by cold upsetting and extruding instead of conventional mechanical machining,its addendum circle can be formed in one upsetting and extruding process.The product is featured with stable dimension and tiny crystal grain.Finally,a detailed description was made on the design and manufacturing of S-type cold upsetting and extruding die.
出处
《模具工业》
2010年第11期54-56,62,共4页
Die & Mould Industry
关键词
启动齿轮
镦挤
成形
starting gear
upsetting and extruding
forming
