几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量

几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 (http://www.dimcax.com/hust/index.php)
-   American standards (http://www.dimcax.com/hust/forumdisplay.php?f=81)
-   -   【转帖】asme y14.5-1994 assumed 90 degree angle on the prin (http://www.dimcax.com/hust/showthread.php?t=14223)

yang686526 2009-04-29 06:29 PM

【转帖】asme y14.5-1994 assumed 90 degree angle on the prin
 
asme y14.5-1994 assumed 90 degree angle on the print
under the asme y14.5-1994 - is there anything relating the appearance of all right angles as 90 degrees. i have been told that you must assume that all right angles are 90 degrees.
1. is it true under the asme standard i posted?
2. furthermore, do you assume the title block tolerance on that 90 degree angle??
thanks in advance
take a look to see if this answers your question
yes, fundamental rule 1.4(i) says this very thing, if you have a standard handy, it's on page 4. a more in-depth explanation is on 2.1.1.2 on page 23.
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