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The offset faces of workpieces are those faces with ledges, graduations or disengagements (mostly in rectangular shape) which are milled on the longitudinal or end faces.
Figure 1 - Depiction of workpiece
offset face
1 - workpiece
2 - offset face
Processing or turning out offset faces by milling takes place for:
- yielding the required geometrical shape necessary for the assembly of further elements- yielding the necessary geometrical shape needed for a special function of the element in the final product
- yielding the necessitated free faces for accomodating operating elements (levers, handles, hand wheels, etc.) or components (screws, nuts, safety elements, etc.).
The processing resp. working of offset faces can ensue using horizontal and vertical milling machines and adopting the plain or end face milling process.
Milling is undertaken by employing milling tools, namely a cylindrical cutter, end face mill, side and face milling cutter and end mill cutter.
A combination of end face mills and side and face milling cutters is possible for milling offset faces. The utilisation of hard metal-tipped milling tools can also ensue depending on the nature of the workpiece material to be processed. Offset faces can be milled:
- in single part or multi-piece chucking- simultaneously with one or several milling tools (gang gutter)
- by the simultaneous utilisation of two or more work spindles on the portal or two spindle milling machines.
What are offset faces of
workpieces?
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Why are offset faces turned out? Give
examples.
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What milling tools are needed for offset
faces?
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