GD&T for assembly
GD&T for assembly
(OP)
Hi guys,
I work as a designer with sheet-metal parts. I would like to know if there is a difference between
1. GD&T for Assembly,
2. GD&T for Manufacturing and
3. GD&T for Inspection.
If there are differences, how can you differentiate between the drawings for these?
I also wondered if somebody can share a very well constructed drawing of a sheet-metal component with
1. An important functional profile (like a CAM/Follower) and
2. With atleast 4 datums and
3. Many flanges at different angles and lengths and
3. A number of slots and holes at different angles in these flanges.
Any help would enlighten me and whole-heartedly appreciated.
Thanks in advance.
I work as a designer with sheet-metal parts. I would like to know if there is a difference between
1. GD&T for Assembly,
2. GD&T for Manufacturing and
3. GD&T for Inspection.
If there are differences, how can you differentiate between the drawings for these?
I also wondered if somebody can share a very well constructed drawing of a sheet-metal component with
1. An important functional profile (like a CAM/Follower) and
2. With atleast 4 datums and
3. Many flanges at different angles and lengths and
3. A number of slots and holes at different angles in these flanges.
Any help would enlighten me and whole-heartedly appreciated.
Thanks in advance.





RE: GD&T for assembly
Frank
RE: GD&T for assembly
Chris, CSWA
SolidWorks 14
ctopher's home
SolidWorks Legion
RE: GD&T for assembly
John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: GD&T for assembly
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: GD&T for assembly
RE: GD&T for assembly
John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: GD&T for assembly
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: GD&T for assembly
Wouldn't the world be a beautiful place if that was considered more often...
_________________________________________
Engineer, Precision Manufacturing Job Shop
Tool & Die, Aerospace, Defense, Medical, Agricultural, Firearms
NX8.0, Solidworks 2014, AutoCAD LT, Autocad Plant 3D 2013, Enovia DMUv5
RE: GD&T for assembly
John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: GD&T for assembly
RE: GD&T for assembly
A tolerance can certainly be applied to an assembly. In that event the tolerance appears on the assembly drawing and dimensions are not generally required. For example, if two cylindrical feature are to be assembled coaxially then a positional tolerance can be applied if datums are assigned to the two diameters in the assembly drawing. In any event, the tolerance is intended for inspection, manufacturing, and engineering BUT, as with drawings in general, it delineates an end-item, functional requirement for engineering and inspection purposes that manufacturing must satisfy at the assembly level.
Tunalover
RE: GD&T for assembly
I will not help you with the second part of your original question, simply because I do not have access to any sheet-metal component drawing, but I think the attached file may interest you when it comes to differences between GD&T for assembly (function), manufacturing and inspection. These are four pages taken from Alex Krulikowski's book "Advanced Concepts of GD&T". In my opinion the example being discussed there very nicely emphasizes the importance of functional approach to dimensioning and tolerancing.
http://files.engineering.com/getfile.aspx?folder=b...
RE: GD&T for assembly
RE: GD&T for assembly