1) upset-bending
弯曲镦锻
1.
The RR and TR upset-bending forging process have been extensively used in making heavy crankshaft at home and abroad.
全纤维弯曲镦锻工艺大大改善了曲轴疲劳强度,并且有效提高了金属利用率和机加工效率,明显优于自由锻造法。
2) RR Bending and Upsetting
RR弯曲镦锻
1.
The Modularization Design for the RR Bending and Upsetting Tool Setup of the Crankshaft Forging Used for Medium and High Speed Diesel Engine;
中高速柴油机曲轴锻件RR弯曲镦锻工装的模式化设计
3) bending upsetting process of crank shaft
曲轴弯曲镦锻
1.
Hot forming mechanism of bending upsetting process of crank shaft is studied in the paper through thermodynamics simulation test and data processing of large crank shaft steel 35CrMo.
本文通过对大型曲轴用钢３５ＣｒＭｏ 的热力模拟试验和数据处理，探讨了曲轴弯曲镦锻的热成形机制，研究了变形温度、应变速率等参量对３５ＣｒＭｏ 钢应力应变关系和再结晶特征的影响。
5) upset
[英][ʌp'set] [美][ʌp'sɛt]
镦锻
1.
New technology and essentials in die design for upsetting drill key on a universal press was introduced.
介绍了在通用冲床上镦锻钻头钥匙的新工艺和模具设计要点 ,并给出了实用的模具结
6) upsetting forging
镦锻
1.
This article has described and analyzed the several upsetting forging methods of large-middle size continuous grain flow crankshaft in detail,and presented the advantages and disadvantages of different methods,meanwhile the development direction of the forging method for the large-middle size continuous grain flow crankshaft has been set forward as well.
通过对常用的几种大中型全纤维曲轴镦锻方法进行详细介绍和分析,指出了各方法的优缺点,并提出今后大中型全纤维曲轴锻造方法的发展方向。
2.
The influences of tube dimension and interface friction on the material flow and the cause of forming defect in the flange forming process by upsetting forging tube are analyzed.
通过对圆管镦锻法兰成形过程进行有限元数值模拟 ,分析了圆管坯料尺寸、摩擦等因素对圆管镦锻法兰成形过程中金属流动的影响及缺陷产生的原因。
补充资料：自动冷镦机、多工位螺栓自动冷镦机
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主要参数内容 | 国际先进 | 国内先进 | 国内一般 | 国内落后 | 评定方法及说明 | ||
（一）加工精度 | 参照GB9166-88、JB/T3053-91 | ||||||
1、冲头夹持器模孔中心线对夹持器后支承面的垂直度（mm） 在100长度上 | 0.008 | 0.01 | 0.015 | ＞0.015 | |||
2、凹模座模孔中心线对凹模后座支承面的垂直度（mm） 在100长度上 | 0.008 | 0.01 | 0.015 | ＞0.015 | |||
3、冲头夹持器模孔中心线对滑块行程的平行度（mm） 在100行程上 | 0.016 | 0.02 | 0.02 | ＞0.02 | |||
4、滑块行程对机身上与凹模座贴合的垂直面的垂直度（mm） 在100行程上 | 0.016 | 0.02 | 0.02 | ＞0.02 | |||
5、工件头部对工件杆部中心线的偏移量（mm） | ＜0.20 | 0.20~0.25 | 0.25~0.30 | ＞0.30 | |||
（二）生产率（件/分） | |||||||
20mm | ＞80 | 70 | 65 | ＜65 | |||
30mm | ＞60 | 50 | 45 | ＜45 | |||
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条