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Prevent Tap Breakage in Alloy Steels
A prospect out of Monroe North Carolina reached out to FlexArm because they were looking for an alternative tapping method that would eliminate tap breakage. The end-user taps into 4140 pre-hardened steel as well as a variety of other alloy steels. They were tired of breaking taps so they sent in some of their parts to see if the FlexArm could help prolong their tool life.
![Tapping into 4140 Steel](https://flexmachinetools.com/wp-content/uploads/2020/08/GH-18-Tapping--768x432.jpg)
Three different sized taps (10-24, 5/16”-18, and 1/2”-13 ) were used to thread 1” deep blind holes in the 4140 steel. To accommodate the 1/2”-13 tap, the RNR-20 pneumatic arm and GH-18 hydraulic arm were chosen to show the end-user the speed difference between the two arms. The RNR-20 in low gear is limited to 100 RPM, but the GH-18 has a speed governor in the power pack, allowing the user to fine-tune their speeds. Therefore, the GH-18 can thread the 1/2”-13 tap faster at 200 RPM. Testing the material with both arms gave the end-user the opportunity to see how each arm would perform on their parts.
![Go No Go Gauge](https://flexmachinetools.com/wp-content/uploads/2020/08/Go-No-Go-Tap-Test--768x432.jpg)
If you have a similar application where you are tapping into alloy steel or just looking to speed up your tapping process, contact us for a quote or schedule a tap test today.
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