Medfab Manufacturing in Lakeville MN completes this medical component in difficulttomachine tantalum using Ingersoll TMicro ellipticalshank boring bar Extra rigidity of the bar permits faster metal removal and improves the asmachined finish  In its first application at this location boring the ID of a titanium tube with a 4to1 aspect ratio and walls as thin as a fingernail the TMicro tool completed the part faster and with a 8 to 10micro asmachined finish  With previous tooling every part required 15 minut

Medfab Manufacturing in Lakeville, MN, completes this medical component in difficult-to-machine tantalum using Ingersoll T-Micro elliptical-shank boring bar. Extra rigidity of the bar permits faster metal removal and improves the as-machined finish. In its first application at this location, boring the ID of a titanium tube with a 4-to-1 aspect ratio, and walls as thin as a fingernail, the T-Micro tool completed the part faster, and with a 8- to 10-µ as-machined finish. With previous tooling every part required 15 minutes of hand polishing to reach surface-quality specs.

Workarounds that Work for Long-Reach Machining

Chip evacuation, lateral forces, and chatter making machining more difficult. Here are some techniques that can improve MRR and protect the tools from overwork New insert geometries on extra rigid extensions Elliptical shank + high-shear cutting edge IC tooling for routing plastics

There is no tooling cure-all for the problems of machining deep cavities, deep holes, or deep slots. Chip evacuation, lateral forces on long unsupported shanks and the risk of chatter inherent in long-reach machining simply compound the basic challenges of cutting metal.

However, machine shops across North America have experience that shows there are good workarounds for common long-reach machining operations — techniques that can improve material removal rates and protect t

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