b'One-Stop Pioneerbroaching machine can run for an extended period of time without operator intervention, Mueller said he doesnt feel that a broaching ma-chine can run unattended during a night shift.To enhance the versatility of a broaching machine by enabling it to perform secondary operations, Mueller said Ty Miles can add a ro-tary table to it. Indexing a part, for example, would enable a manufac-turer to not only broach a feature but drill or tap a hole.We have been fairly innovative over the years by combining other secondary operations with broach-ing, he added, so that with one part handling, you can get a com-pleted part.Quicken the PaceTraditionally, broaching machines were built to run at cutting speedsProduction of a broaching tool is viewed of 9.1 to 18.3 m/min. (30 to 60 sfm).(above) at Ty Miles. Shown (left) is an example Mueller said Ty Miles specializesof a part that the company broaches.in high-speed broaching systems. Our standard machine is typicallychine to its base; reconditioning 120 feet per minute (36.6 m/min.),the ram column; replacing needed he added, noting that internal appli- electrical, pneumatic and hydraulic cations usually go up to only 60 sfm. components; updating the control; Those speeds, however, are forand building it back up, Mueller ex-HSS broaches. When applying aplained.broach with indexable carbide in- Basically, what they get looks like serts from another cutting tool man- a new machine when it gets done, ufacturer, the company was able tohe said, adding that the cost of a re-run as high as 87.8 m/min. (288 sfm)build is about 70% to 75% of the cost during a demonstration at a tradeof a new machine, which costs from show, Mueller said. A. Richter about $75,000 to $200,000 or more.Because Ty Miles broaching ma- in the market for a new piece ofNot all rebuilt machines go back chines are built to last, Mueller saidequipment. Unfortunately, there isto the same end users. Mueller said it can be a challenge to sell a newno planned obsolescence, and thatTy Miles sometimes purchases its machinetoexistingcustomersis a problem. used machines at auctions or other when an older machine still cranksTo enhance machine productiv- venues and takes old equipment as out parts, even if at a reduced rate. ity and bring it up to date, Ty Milestrade-ins when customers want new We still have machines from thefrequently rebuilds its machines.machines. If needed to close a deal, 1960s that are working, he said.Over the last several years, we arethe company even takes a competi-Once a company has maybe two,doing more remanufactured ma- tors machine and rebuilds it.three, four machines, you can al- chines than new ones, Mueller said. We prefer not to because we are ways retool them for a differentThe rebuilding process poten- more familiar with our equipment, application, so they are really nottially involves stripping down a ma- he said.38JUNE 2020Broaching.indd 38 5/14/20 3:08 PM'