Turn-Key Solution Drills and Mills Hexalobe Bone Screws 50% Faster
A drilling tool, a milling cutter, an ultimate machining strategy with perfectly adapted parameters; this is needed, when machining medical screws made from titanium or stainless steel. Mikron Tool has developed a turn-key solution, which simultaneously does the machining of hexalobular bone screws (better known as Torx®) 50% faster, guaranteeing a high precision of the profile and achieving nearly burr-free results.
The four operations (pre-hole drilling, chamfering, milling, deburring) can be completed in three operations with two tools.
First a step drill does the center bore and a chamfer of 120 degrees and this right away with an excellent surface quality of Ra 0.2 µm, Rz 0.8 µm. After the milling of the final shape, this tool will be used once again in the last operation to achieve a nearly burr-free surface and superior surface quality.
The milling cutter with 3 or 4 flutes -- depending on diameter -- is available in two standard lengths, so that depending on the screw type, different Torx shapes can be machined.
Its high stiffness allows machining with high feeds and massive stepover, while still guaranteeing the necessary hexalobular profile accuracy. The surface quality is given by the special geometry which also affords to work with high stepover so that the operation can be completed with few steps.
Want more information? Click below.
Rate this article
View our terms of use and privacy policy ::m::