1) intermediate upsetting
中部镦锻
1.
Upperbound analysis of tube-billet intermediate upsetting;
管坯中部镦锻变形上限分析
2) centre upsetting
中段镦锻
3) 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
4) 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。
5) Upsetting
[英][ʌp'setɪŋ] [美][ʌp'sɛtɪŋ]
镦锻
1.
The advanced technology for producing these kind of forgings which are similar to full fi-bers crankshaft forging on a general forging press is upsetting and offsetting operation.
在通用压机上生产类似全纤维曲轴一类锻件的先进工艺为多向镦锻法。
2.
Comparting fatigue tests on TR upsetting and open die forging,this paper finds that the fatigue strength of the TR upsetting crankshaft is 16 — 22 percent higher than that of the open die forging crankshaft.
本文介绍了先进的TR镦锻法制造曲轴毛坯的工作原理。
3.
When the ratio of upsetting of tubular blank was very large, the ring valley formed at inner wall and the fold formed at last.
采用大镦锻比对管坯端部镦粗时容易发生轴向失稳,在管坯的内壁形成环形内凹,最终可形成折叠。
6) upset forging
镦锻
1.
Simulation and optimization of the upset forging process of tube parts;
管坯镦锻工艺仿真及优化
2.
Research on the upset forging technology of large full fiber crankshaft;
大型全纤维曲轴的镦锻成形工艺研究
3.
The mechanical analysis and the upset forging simulating experiment with 1∶7.
2小尺寸镦锻模拟试验,证明在60 MN液压机上利用NTR法可以实现18V48/60曲轴全纤维镦锻。
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