Inspection Equipment for Checking Serrated Steel Tubing Depths

J

jonerenberg

#1
My company uses steel tubing in its product that has serrations or grooves in it. Some tubing has it on the outside diameter and some has it on the inside diameter. Currently two methods are used to check the depth are using a depth gauge and a micro-vue. Both of these methods have limits to the accuracy of their measurements. I am intrested to know if any one has any other ideas for quipment that coud be used to check the depth. Attached is a representative drawing of the serrated tubing.
 

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Stijloor

Staff member
Super Moderator
#2
My company uses steel tubing in its product that has serrations or grooves in it. Some tubing has it on the outside diameter and some has it on the inside diameter. Currently two methods are used to check the depth are using a depth gauge and a micro-vue. Both of these methods have limits to the accuracy of their measurements. I am intrested to know if any one has any other ideas for quipment that coud be used to check the depth. Attached is a representative drawing of the serrated tubing.
Can someone help?

Thank you!

Stijloor.
 

Wes Bucey

Quite Involved in Discussions
#3
My company uses steel tubing in its product that has serrations or grooves in it. Some tubing has it on the outside diameter and some has it on the inside diameter. Currently two methods are used to check the depth are using a depth gauge and a micro-vue. Both of these methods have limits to the accuracy of their measurements. I am intrested to know if any one has any other ideas for quipment that coud be used to check the depth. Attached is a representative drawing of the serrated tubing.
I'm curious to know the ultimate function of the serrations that measurement by micro-vue doesn't seem to offer enough accuracy for a relatively loose tolerance of +/- .003. Do internal and external grooves mate in some applications?

What are you experiencing in terms of conformance/nonconformance during inspection?

I presume you buy this from a supplier - how does he measure in-house?
 
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