koodsg
Aerospace
- Dec 13, 2011
- 11
Hi guys,
Got messed up with the datum target areas definition and inspection methods. Could some one clarify on this?
There is necessity to use the datum target area to establish a primary datum surface A.
But
from design side the datum target area defined as dia of 50mm,
from manufacturing made the tool with the 50mm X 25mm rectangle tool index.
When I check the ASMY14.5 says the datum target area is tool target area, and not much clear definition with example.
My confusion is
Is the actual tool index target area must be the same as designed circular datum target area?
(or)
Is the smaller actual tool index target area allowed to fit inside the design defined datum target area? (in this case what is the minimum datum target area allowed by inspection tool?)
Some one help me to understand the exact definition of tool index of datum target according to ASMY14.5 or ISO?
See pictures shows the more details.
Thank you.
Got messed up with the datum target areas definition and inspection methods. Could some one clarify on this?
There is necessity to use the datum target area to establish a primary datum surface A.
But
from design side the datum target area defined as dia of 50mm,
from manufacturing made the tool with the 50mm X 25mm rectangle tool index.
When I check the ASMY14.5 says the datum target area is tool target area, and not much clear definition with example.
My confusion is
Is the actual tool index target area must be the same as designed circular datum target area?
(or)
Is the smaller actual tool index target area allowed to fit inside the design defined datum target area? (in this case what is the minimum datum target area allowed by inspection tool?)
Some one help me to understand the exact definition of tool index of datum target according to ASMY14.5 or ISO?
See pictures shows the more details.
Thank you.