Tungsten carbide crosshatch pattern.

[CMcF]

Sorry, not really a SW question, but is there a standard crosshatch pattern for tungsten carbide?

 

[Dallas1020]

A few years ago, the standards changed. Instead of having separate hatch symbols for different materials the powers to be of the drafting standards said that whatever material you are trying to show, the standard symbol will now be a simple hatched line that is drawn (for ex: at 45 deg.)
and that the deg value for the hatch can vary so as not to get mixed with other geometry lines in the drawing.
hope this helps.

 

[CMcF]

Thanks Dallas 1020,
seems sensible to me.

 

[CorBlimeyLimey]

Dallas1020
Would you please post where this new Drafting Standard can be found?


CorBlimeyLimey
Barrie, Ontario
faq559-863

 

[JNR]

I would suspect it is ASME Y14.5 - but always use the latest rev. (at least 1994? - I'm not a drafter).

BTW: For those of you using OLD rev's, note it ain't ANSI any more.

I was - and he did. So at least I didn't get coal.....
OK, OK, It's a reference to my holiday sig. "Be naughty - Save Santa a trip..."

 

[Dallas1020]

To:CorBlimeyLimey
Barrie, Ontario

sorry for the lag in response time Cor...
Two separate checkers had informed me of this change in the hatching.
It was brought to my attention 3 years ago. I believe that the figure that was shown to me was in the Global Standard Engineering Handbook. I guess I should have clarified that using the traditional material symbols does not mean that the drafter/designer is incorrect, but if one cannot find a specific materail symbol, one would use the hatch I mentioned and be done with it.

Hope this helps?

Dallas

 

[Dallas1020]

CorBlimeyLimey
Barrie, Ontario

Cor. i forgot one other thing...there is a new version of the global book but I do not have one...
i believe the figure/paragraph is in there.

 

[ctopher]

I believe different types of hatching are legal, but in my experience most machine shops prefer the same hatching throughout the dwg. It's easier for them to read and understand. Some shops don't care.

 

[drawoh]

ASME Y14.5M-1994 definitely does not indicate how to do cross hatching. It is a dimensioning and tolerancing standard.

My Machinery's Handbook, Edition 26 shows a chart full of cross hatches as per ANSI Y14.2M-1979 (R1987). It shows a cross hatch for "Titanium and refractory material".

I rarely use the cross hatches to indicate material. This is controlled by the MATERIAL box on my drawings. I want to use the cross hatch to differentiate between each part, regardless of material.

JHG

 

[JNR]

Ahah! there ya go - try looking up the lastest rev of ASME Y14.2M. Well, I guess it is ASME too now? Thanks for the correction, drawoh, I tend to lump 'em all under 14.5 like people calling all copies "XeroX's".

BTW: We did have to look this up a couple of years ago for some obscure reason and I believe I recall it is somewhat optional. Probably the Architectural Engrs still like it.



I was - and he did. So at least I didn't get coal.....
OK, OK, It's a reference to my holiday sig. "Be naughty - Save Santa a trip..."