b'Many times your chipbreaker is a big key to success.In the Groove superior rigidity. White pointed outforgrooving,manytimesyour that the allowable length-to-diam- chipbreaker is a big key to success, eter ratio for carbide tools is 10-1said Travis Coomer, national key ac-(0.004"), he said. compared with 3-1 for indexablecount manager at GWS Tool Group Common grooving options todaytoolholders made of steel. in Tavares, Florida.include solid-carbide tools and in- Custom solid-carbide round toolsHe advises those who use in-dexables. When it comes to groov- are a specialty at Mikron Corp. Mon- serts to cut grooves to make sure ing, the focus at Scientific Cuttingroe in Connecticut. the chipbreaker folds the chip in a Tools Inc. in Simi Valley, California,When customers come to usway that makes it smaller than the is mainly on grinding solid-carbidefor grooving tools, it is usually for agroove being cut.tools for cutting internal grooves forturnkey operationthat is, a jobIfthechipbreakerdoesnt, things like threads and O-rings, saidfor which Mikron produces most ifCoomer said, the chips will get Sales Director Todd White. not all of the different tools neededstuck, especially once you get down These can be challenging if theyto make a part, said Sales Managerinto the groove a little bit. This will are at the bottom of a small-diam- Nathan Lisker. cause some marring of the parts.eter hole, he said. Youve got toProvided with a part drawing orIf the groove to be cut isnt too have the proper reach to get to thethe part itself, Mikron will grind adeep, he believes that Top Notch-groove (location) and then be abletool designed for the special form orstyle inserts may be a good choice. to machine it successfully. profile to be grooved into the part. These feature molded notches on For deep grooving applications,the top and bottom that seat the the company typically producesIndexable Issues inserts in their holders. With the solid-carbide tools because of theirWhen indexable tools are usedinserts held at a 3-degree angle, Coolant Ring Technology holders allow better coolant penetration into a bore during cutting operations.24AUGUST 2021Grooving.indd 24 7/19/21 11:10 AM'