Range of tools and high-performance grades address challenges to deliver improved productivity, security and tool life in transmission shaft machining
The Sandvik Coromant portfolio of automotive component manufacturing solutions offers a selection of tools and insert grades designed to optimize the machining of transmission shafts.
Beginning with soft stage steel turning, high-performance GC4325 and GC4315 insert grades for internal and external operations offer superior levels of wear resistance, the ability to withstand high cutting temperatures and cutting edges that stay in shape for long times in cut.
Moving to hard part turning, CBN inserts are the ﬁrst choice for turning high quality steel surfaces in the hardness range 58-65 HRc. CBN inserts from Sandvik Coromant have wiper options optimized for speciﬁc applications: WH (wiper HPT) generates low cutting forces for best surface integrity, while WG (wiper general) permits higher feed capacity.
The CoroCut® 1-2 grooving programme offers a number of benefits to those machining transmission shafts. For instance, patented spring clamping delivers high rigidity and clamping force accuracy, while both over- and under high precision coolant is available and easily connected via plug and play adaptors. What’s more, CoroCut 1-2 is now available in GC4325 high performance grade for steel.
Clearly, as a transmission shaft, these complex components demand numerous gear and spline milling operations. Among the tools ideal for addressing this challenge is CoroMill 176, an innovative indexable insert cutter for productive gear wheel machining that is designed for gears in the module range 4 to 10. Also, deployed widely for transmission shaft applications are the CoroMill 172 disc cutter for milling high-quality gear profiles and, similarly, CoroMill 171 for small gear modules. The latter features inserts with two cutting edges, while the same cutter body can hold inserts for different gear profiles.
Other gear and spline profiles on transmission shafts can be tackled using InvoMilling™, the unique Sandvik Coromant approach to milling spur and helical gears using indexable insert cutters, along with CoroMill 161 and 162. Using this single tool set on multi-task machines or five-axis machining centres it is possible to create many different profiles by simply changing the CNC program instead of changing the tool.