凹R角

English translation: Concave arc radius

11:42 Oct 21, 2019
Chinese to English translations [PRO]
Tech/Engineering - Engineering: Industrial
Chinese term or phrase: 凹R角
Hello,

This is from the description of a new manufacturing process for mould making:

在VW326车顶OP20的加工过程中,现场反应,部分程序切削量大,导致加工速度慢,刀片的更换也较频繁,建议调整,经确认,发现问题的关键在于对|***凹R角***的处理不到位,加工余量过大。

I am not sure what "凹R角" here refers to. Is it a cutting tool?

Thank you!
Egmont Schröder
Germany
Local time: 21:04
English translation:Concave arc radius
Explanation:
dimensional contour end milling, conventional offset contour CNC tool paths generated by ...... R(-): concave arc radius, R(+): convex arc radius. 4.5. 2 ...

https://pdfs.semanticscholar.org/c54b/42188b99b69d9cedb97bdf...

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Note added at 2 hrs (2019-10-21 13:47:41 GMT)
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"Some controllers can accept arc radius data directly (in the form of R commands), as shown in Figure 3.2(e), and do not require I or J commands. These controllers are capable of calculating the location of an arc's center if they know the arc's start point (the current tool point), the arc's endpoint (X and Y command), the arc's radius (the R command), and the arc's clockwise or counterclockwise direction (G02 or G03). "
Ref: http://faculty.etsu.edu/hemphill/entc3710/nc-prog/nc-03-02.h...

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Note added at 22 hrs (2019-10-22 09:44:08 GMT)
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I understand 角 here to be the mold corner, so "concave corner radius" could also work.
Selected response from:

Gareth Callagy
United Kingdom
Local time: 20:04
Grading comment
Thank you
4 KudoZ points were awarded for this answer



Summary of answers provided
5Concave R-shaped angle;Concave "R" angle
Bruce Guo
4Concave arc radius
Gareth Callagy


  

Answers


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5
Concave arc radius


Explanation:
dimensional contour end milling, conventional offset contour CNC tool paths generated by ...... R(-): concave arc radius, R(+): convex arc radius. 4.5. 2 ...

https://pdfs.semanticscholar.org/c54b/42188b99b69d9cedb97bdf...

--------------------------------------------------
Note added at 2 hrs (2019-10-21 13:47:41 GMT)
--------------------------------------------------

"Some controllers can accept arc radius data directly (in the form of R commands), as shown in Figure 3.2(e), and do not require I or J commands. These controllers are capable of calculating the location of an arc's center if they know the arc's start point (the current tool point), the arc's endpoint (X and Y command), the arc's radius (the R command), and the arc's clockwise or counterclockwise direction (G02 or G03). "
Ref: http://faculty.etsu.edu/hemphill/entc3710/nc-prog/nc-03-02.h...

--------------------------------------------------
Note added at 22 hrs (2019-10-22 09:44:08 GMT)
--------------------------------------------------

I understand 角 here to be the mold corner, so "concave corner radius" could also work.

Gareth Callagy
United Kingdom
Local time: 20:04
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 8
Grading comment
Thank you
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4 days   confidence: Answerer confidence 5/5
Concave R-shaped angle;Concave "R" angle


Explanation:
I found some pictures and saw how a "凹R角" is like, the shape is like a R in upper case, but it's concave.
I don't know how to send you the picture as the picture is from Alibaba's website.
please sign up on the website: https://login.1688.com/member/signin.htm?from=sm&Done=http:/... then you will see how it is like.


    Reference: https://login.1688.com/member/signin.htm?from=sm&Done=http:/...
Bruce Guo
China
Local time: 22:04
Works in field
Native speaker of: Native in ChineseChinese, Native in EnglishEnglish
PRO pts in category: 12
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