Technical Articles
Useful technical information on metalworking, surface roughness, tolerances and manufacturing methods.

What is Honing?
Detailed information about the honing process, honing stones, crosshatch surface texture and plateau finish.
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What is Roller Burnishing?
Working principle of roller burnishing, plastic deformation and its advantages.
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What is Deburring?
Burr formation, harmful effects of burrs and deburring methods for intersecting holes.
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Metric Surface Roughness Chart
Ra values, roughness symbols and achievable surface roughness values by manufacturing method.
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Hole and Shaft Tolerances
ISO 286-2 hole and shaft tolerance tables, fit types and ISO fits used in mechanical engineering.
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Tolerances by Machining Method
IT tolerance values achievable with lapping, honing, grinding, turning, milling, drilling and other methods.
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Ra / Rz Conversions
Conversion factors and calculation examples for Ra, Rz, Rt, Rmax, Rp, RMS roughness values.
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