版塊導(dǎo)航: 正在加載中...

應(yīng)《網(wǎng)絡(luò)安全法》要求，自2017年10月1日起，未進(jìn)行實(shí)名認(rèn)證將不得使用互聯(lián)網(wǎng)跟帖服務(wù)。為保障您的帳號(hào)能夠正常使用，請(qǐng)盡快對(duì)帳號(hào)進(jìn)行手機(jī)號(hào)驗(yàn)證，感謝您的理解與支持！

24小時(shí)熱門版塊排行榜

返回列表

本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看

xsh1

銀蟲 (正式寫手)

應(yīng)助: 1 (幼兒園)
金幣: 465.4
散金: 15
帖子: 528
在線: 130.9小時(shí)
蟲號(hào): 143201
注冊(cè): 2005-12-22
性別: GG
專業(yè): 零件加工制造

[求助] 修改一段中譯英

自己參考了google翻譯，能看看有哪些問題需要修改？

最小切削厚度是切削形成切屑的極限，最小切削厚度對(duì)超精密加工的表面質(zhì)量有重要影響，隨切削厚度趨近于最小切削厚度，則切削表面質(zhì)量趨于較好，而一旦切削厚度減小到最小切削厚度以下，就會(huì)出現(xiàn)耕犁現(xiàn)象，使耕犁表面質(zhì)量變差；隨著切削厚度逐步減小，耕犁現(xiàn)象逐步消失，直至切削表面只發(fā)生彈塑性變形，使表面質(zhì)量又趨于好轉(zhuǎn)。在超精密加工時(shí)，控制切削參數(shù)，使切削厚度始終大于最小切削厚度，不發(fā)生耕犁現(xiàn)象，是獲得優(yōu)異表面質(zhì)量的主要方法。而如何控制切削參數(shù)，長(zhǎng)期以來靠加工者經(jīng)驗(yàn)來選擇，缺少理論依據(jù)。因此超精密加工理論、技術(shù)還有許多問題不明確，亟待補(bǔ)充完善。

MTC is the tipping point of formation the chip, MTC have major effect on surface quality of the ultra-precision machining. With the cutting thickness is close to the MTC, The cutting surface quality become better, but once the cutting thickness is reduced to the following of the MTC, there will be plowing phenomenon, so plowing surface quality deterioration. With cutting thickness gradually decreases, plowing phenomenon gradually disappeared, until only the elastic-plastic deformation occurred, so surface quality tend to improve. When ultra-precision machining, control the cutting parameters, so that the cutting thickness is always greater than the MTC, plowing phenomenon does not occur, is main method to obtain excellent surface quality. And the cutting parameters are select on the basis of experience by the processor for a long time, so lack theoretical basis. Therefore, ultra-precision machining theory, there are many technical issues are not clear, urgent need to supplement and perfect.

回復(fù)此樓

» 猜你喜歡

285化工學(xué)碩求調(diào)劑（081700）已經(jīng)有10人回復(fù)
求材料調(diào)劑已經(jīng)有10人回復(fù)
本科鄭州大學(xué)物理學(xué)院，一志愿華科070200學(xué)碩，346求調(diào)劑已經(jīng)有4人回復(fù)
國(guó)自科面上基金字體已經(jīng)有8人回復(fù)
能源材料化學(xué)課題組招收碩士研究生8-10名已經(jīng)有11人回復(fù)
材料專碩英一數(shù)二306 已經(jīng)有5人回復(fù)
085600材料與化工調(diào)劑 324分已經(jīng)有9人回復(fù)
0703化學(xué)調(diào)劑已經(jīng)有12人回復(fù)
0703化學(xué) 305求調(diào)劑已經(jīng)有4人回復(fù)
0703化學(xué)調(diào)劑，求各位老師收留已經(jīng)有10人回復(fù)

采得百花成蜜后，為誰辛苦為誰甜。

1樓 2011-08-20 21:50:01

已閱回復(fù)此樓關(guān)注TA 給TA發(fā)消息送TA紅花 TA的回帖

wxh578

金蟲 (著名寫手)

翻譯EPI: 1
應(yīng)助: 2 (幼兒園)
金幣: 869.8
散金: 281
紅花: 15
帖子: 1093
在線: 213.3小時(shí)
蟲號(hào): 1222060
注冊(cè): 2011-03-05
專業(yè): 高等教育學(xué)

【答案】應(yīng)助回帖

★
愛與雨下(金幣+1): 歡迎常來~！ 2011-08-21 09:39:04
xsh1(金幣+10, 翻譯EPI+1): 謝謝！ 2011-08-21 11:46:55

MTC， the tipping point of the chip formation ,has great effect on surface quality of the ultra-precision machining. With the cutting thickness getting closer to the MTC, the cutting surface quality becomes better.But once the cutting thickness is below the MTC, there will be plowing phenomenon, and the plowing surface quality gets deteriorated. With cutting thickness gradually decreasing, plowing phenomenon gradually disappears, until the elastic-plastic deformation occurres, which helps to improvethe surface quality. When ultra-precision machining, to control the cutting parameters, so that the cutting thickness is always greater than the MTC and plowing phenomenon does not occur, is a major method to obtain excellent surface quality. While how to select the cutting parameters has been so far based on the experience of the processor, there lacks theoretical basis. Therefore, many technical issues concerning ultra-precision machining theory are not clear and yet to be perfected.

贊一下(1人)

回復(fù)此樓

好好學(xué)習(xí)，天天向上！

2樓2011-08-21 08:58:57