- Joined
- Jan 30, 2017
- Messages
- 261
Is it normal for round bar stock to have a TIR of .007 ? I checked my chuck and it is .0005 TIR.
Your design and your die with thousands of feet run through it would be like new compared to the stock mill dies. Add that to the calculations made and the $$ added to the bottom line when mill tolerances move towards their profit.Actually its amazing it comes out as good as it does. I had several shapes I designed and used in my business and they were very consistent.
Extruded aluminum doesn't really have any support as it comes out of the die and moves down the line.
Your design and your die with thousands of feet run through it would be like new compared to the stock mill dies. Add that to the calculations made and the $$ added to the bottom line when mill tolerances move towards their profit.
That's the key, maintenance. I haven't had dies made but I have worked with a customer's material who had their dies made and the accuracy over stock material is huge. All the defects are not related to the die but when it comes to measurements the die is usually the root cause. The means to hold closer tolerances with electronic measuring systems has resulted in material being produced that measures towards the low end of tolerances and this is true especially in sheet product.We purchased the die but they maintained it for us.