【摘要】 通过两种工艺方案中成型凹模受力情况的分析比较 ,说明用镦挤工艺生产沉头方颈螺栓 ,可降低镦锻力 ,提高模具寿命 ,保证零件质量更多还原

【Abstract】 By the analysis and comparison of upsetting extrusion and cold forging technology,the upsetting extrusion technology on the countersunk square neck bolt is introduced in the paper. The technology can reduce the upsetting forging force,increase the die life and ensure the part quality.更多还原