The future of the automobile is marked by new drive concepts from electric to hybrid drives to new drive concepts such as the fuel cell. New engine and body concepts are being developed in this environment, and new materials are increasingly being used to achieve the same or better performance values with the same or lower weight.
Modern fiber-reinforced plastics (FRP) are increasingly being used for reasons of efficiency, weight and strength. Their special properties complement classical design methods and lightweight construction based on aluminium and titanium alloys. Fiber plastics or composites are gradually finding their way from aviation and motor sports into the broad industrial application of automotive and commercial vehicle technology.
Where high specific strength at low weight is required, we come across fiber plastics. When machining CFRP, GFRP and CFRP-metal-stacks, surface quality and process reliability are of paramount importance. This requires tools with specially adapted geometry, special cutting materials and coating systems that are matched to the respective material.
Even though more and more new materials are finding their way into automobile production, there are still many classic machining processes to be found.
One of these is the production of centering holes in the manufacture of axle systems. We have solutions.
Inconel 718 is a hardenable nickel-chromium-iron-molybdenum alloy with high temperature resistance and excellent oxidation and corrosion properties.
Due to these properties and good machinability, the material is used for aircraft engines, gas turbines, rocket engines, automotive turbochargers, high-strength springs and fasteners.
A special step drill based on SIRIUS 761310 (Ø2.5x3.6) is used especially designed for machining Inconel. The edge preparation of the drill tip and the special tip grinding create more precision and tool life.
Component: Turbocharger axle
Cooling: emulsion 4%
Drilling depth: 5mm blind hole
Material: Inconel 718
Tool life: 400 holes
Cutting speed vc: 5 m/min
Feed speed vc: 38 mm/min
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