I am trying to find an accurate, cost effective way to measure flash and mismatch in an o-ring groove on a plastic molded part to less than 0.002". 3-D laser profilometry looks promising but expensive. Any other options for demonstrated success?
I am trying to find an accurate, cost effective way to measure flash and mismatch in an oring groove on a plastic molded part to less than 0.002". 3-D laser profilometry looks promising but expensive. Any other options for demonstrated success?
Re: Measurement method for flash and mismatch @0.002"
The part has 2 o-ring grooves ~3.200" dia X 0.120 wide and 0.120 deep. They are formed by mechanical slides in a multicavity injection mold. The molding material is a glass-filled nylon.
The part has 2 o-ring grooves ~3.200" dia X 0.120 wide and 0.120 deep. They are formed by mechanical slides in a multicavity injection mold. The molding material is a glass-filled nylon.
I am trying to find an accurate, cost effective way to measure flash and mismatch in an oring groove on a plastic molded part to less than 0.002". 3-D laser profilometry looks promising but expensive. Any other options for demonstrated success?
The part has 2 o-ring grooves ~3.200" dia X 0.120 wide and 0.120 deep. They are formed by mechanical slides in a multicavity injection mold. The molding material is a glass-filled nylon.
You might want to consider a toolmaker's microscope, which can be a very handy thing to have around; more so than you might imagine. There are different forms of microscopes with graduated reticles in the eyepiece that are relatively inexpensive, on up to much more costly 3-axis types.
Re: Measurement method for flash and mismatch @0.002"
My issue is trying to measure a "Z" dimension while viewing in X-Y. I agree that non-contact system is probably best. I've not used a toolmaker's microscope. Are you proposing looking at the flash from the side and not from above?
My issue is trying to measure a "Z" dimension while viewing in X-Y. I agree that non-contact system is probably best. I've not used a toolmaker's microscope. Are you proposing looking at the flash from the side and not from above?
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