Knurl Callout
Knurl Callout
(OP)
I have seen knurls called out in many ways yet can't find a "standard" on how to do it. I know that if you have your TPI, helix angle and OD called out, you will more than likely get what you want. Is there a "correct" or "standard" way to do this? Possibly and ANSI or ASME standard? I am asking for straight, helix and diamond knurls. Thanks.
AntMechEng
AntMechEng





RE: Knurl Callout
Chris
SolidWorks 06 5.1/PDMWorks 06
AutoCAD 06
ctopher's home (updated 10-27-06)
RE: Knurl Callout
Thanks,
AntMechEng
RE: Knurl Callout
Circular pitch knurling is based on the number of teeth per
25.4 mm of circumference* and is for use on surfaces above 25.4 mm diameter.
*Normal teeth per 25.4 mm are measured perpendicular to the teeth.
RE: Knurl Callout
RE: Knurl Callout
96 DP DIAMOND KNURL ALL AROUND.
Got me what I wanted the last time I used it. It was in a note with cross reference to the appropriate diameter on the part.
At the time I looked it up somewhere but can't recall where.
ASME Y14.5 1.8.17 reads:
“Knurling is specified in terms of type, pitch and diameter before and after knurling. Where control is not required, the diameter after knurling is omitted. Where only a portion of a feature requires knurling, axial dimensioning is provided. See Fig. 1-46. “
Fig1-46 has a side view of a shaft dia19.7 with a portion indicated for knurling. The actual callout is “Pitch 0.8 Raised Diamond Knurl”
It does reference ANSI/ASME B94.6 at 1.8.17.2 for info on inch knurling.
Back in the UK though I seem to recall drawings that just had a callout to the appropriate area with “Coarse Knurl” or “Fine Knurl”.