Proper chamfer callout with the angle as a basic.
Proper chamfer callout with the angle as a basic.
(OP)
By making the angle of a chamfer basic does this mean the angle has to be "Perfect"?
There is a discussion here about the validity of showing the angle as a basic and using the tolerance block in the drawing title block to control the chamfer size. Thus allowing angle variation within the limits of the depth of chamfer.
Is this a valid way of controlling the angle of the chamfer?
One discussion is to have the angle tolerance dictated by an angular tolerance in the title block.
Our ANSI Y14.5-1994 book does not discuss this.
Any help would be appreciated.
Tony
There is a discussion here about the validity of showing the angle as a basic and using the tolerance block in the drawing title block to control the chamfer size. Thus allowing angle variation within the limits of the depth of chamfer.
Is this a valid way of controlling the angle of the chamfer?
One discussion is to have the angle tolerance dictated by an angular tolerance in the title block.
Our ANSI Y14.5-1994 book does not discuss this.
Any help would be appreciated.
Tony





RE: Proper chamfer callout with the angle as a basic.
RE: Proper chamfer callout with the angle as a basic.
If you use basic dimensions, then you would need to also apply an appropriate geometric tolerance (probably a profile tolerance) to define the allowances for the surface.
ASME Y14.5M-1994 defines several methods for specifying a chamfer in paragraph 1.8.15 (page 14) and Figures 1-41, 1-42, 1-43 and 1-44. (pages 17-18). All of the examples illustrated would default to the block tolerance as long as they were not enclosed in a box. Select the method most appropriate for your application.
Hope this helps
GDT GUY
RE: Proper chamfer callout with the angle as a basic.
Thank you again!
Tony