Chamfering 303

[Justin Beebe at Folsom Tool]

Can anyone suggest a good tool for chamfering 303 stainless that has not been heat treated. The part is .250 thick. The chamfer is 30 degrees by .170 deep all around the profile of the part. The part is about 20 inches long and 4 inches wide. I tried a 2 flute carbide chamfer mill and it chipped out on the first part. Because of clearance issues .500 is the biggest I can go on the diameter of the chamfering tool. Should I use carbide, HSS, Cobalt or possibly a tool with inserts. Also how many flutes. I need to make about 100 pieces on a 40 taper horizontal.

 

Thanks

[YoDoug®]

In the past when I have had to put a chamfer on a difficult material that was chipping the cutter I would use a ball nose and semi-finish the chamfer in a few steps down so it would not leave very big scallops. The bigger steps or scallops from using a square corner roughing tool are very hard on the chamfer tool.

[mold100]

Harvey Tool 3/8 diameter 30deg chamfer mill tian coated cat # 18730-C3 $46.40

uncoated #18730 36.40

 

They have 1/2 in. dia as well page 67 of newest catalog. I would go with the 1/2 inchers if possible

[heavychevy2155]

If you can, use a four fluted cutter, coated would be best.

[Justin Beebe at Folsom Tool]

Thanks for the advice. I will look into these options today.

[Justin Beebe at Folsom Tool]

Thanks you guys for the replies. I ordered up some of the 4 flute Harvey chamfer cutters like mold100 suggested. They look real good in the catalog. I'll have them in a few days and let you guys know how they worked out.

[mold100]

Please do Justin, I use them quite a bit and cant seem to find them at a better deal any where else fo the differant angles. I use the 45 degree as well.

[Justin Beebe at Folsom Tool]

Here is an update on the Harvey Tool chamfer cutters. I went on vacation for 10 days came back and the same tool is still running in the machine. That works for me.

[mold100]

Glad to hear that it all worked out.