作业帮 > 英语 > 作业

英语翻译Rubber FormingIn 1872,Adolph Delkescamp was granted an A

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/19 12:54:50
英语翻译
Rubber Forming
In 1872,Adolph Delkescamp was granted an American patent concerning the cutting of paper and foil using rubber,and between 1936 and 1940 Henry Guerin of the Douglas Aircraft Company was granted patents on the forming and shearing of sheet metals by means of a confined and pressurized rubber pad hence the Guerin process.
Basically,the technique is relatively simple.A block of rubber is confined in the retainer,when forced upon the piston in a press,the rubber is pressurized rather like a fluid.This produces the results shown by the use of appropriate tooling.
优点如下:
1、The tooling costs are reduced ,often by as much as 90%.
2、The lead time is reduced
3、Tool modification is simply achieved
4、Scoring during forming is culminated; so a highly polished sheet will yield a highly polished pressing.
缺点如下:
1、The process entails a high proportion of trail and error.
2、There is poor material utilization.It is advisable to use a large blank to avoid the propagation of flange wrinkles,(formed by generated hoop stresses into the pressing wall).
3、A greater press capacity is required for rubber pad than for conventional production ,often restricting it to thin sheet (presses used are often about 5000 ton capacity)
4、It is generally restricted to shallow parts,for a limitation is the amount to which the rubber itself can be deformed.One aspect,however,of rubber pressing know-how is the insertion of further blocks or strips of rubber in critical areas to achieve depths.
5、It is often only possible to achieve a general shape; the final part to drawing must be created by subsequent hand work; springback is a problem with high strength materials.
橡胶FormingIn 1872,阿道夫·Delkescamp被授予一个美国专利关于切割纸和箔使用橡胶,在1936年和1940年之间亨利Guerin的道格拉斯航空公司被授予专利的形成和剪切板金属通过一个封闭和加压橡胶垫因此Guerin过程.基本上,这个技术是相对简单的.一块橡胶局限于护圈,当强加在一份新闻稿活塞,橡胶是加压,而像一个f
优点1,该工具成本降低,通常高达90%.2,交货时间是减少了
,3工具修改仅仅是
实现
4得分高潮,在成形;所以一个高度抛光的表将产生一个高度抛光


缺点1,这个过程需要一个高比例的小径和错误.2,有贫穷的材料利用率.明智的做法是,使用一个大的空白,以避免传播的法兰皱纹,(由生成的箍应力到紧迫的墙).3、一个更大的媒体能力所需的橡胶垫比常规的生产,常常限制它薄钢板(按使用通常约5000吨产能)4,它通常是受限于浅部分,对于一个限制是,摩擦量