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Wire EDM tolerances: what is realistic and what it costs
Wire EDM is a spark erosion process that cuts a profile with a thin travelling wire in deionised water It is used for cutting hardened material, sharp internal corners and parts with no cutting force. Typical values: typ
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Jig Boring Machine tolerances: what is realistic and what it costs
Jig Boring Machine is a machine built to position holes accurately, with a thermally stable structure and precision scales It is used for hole patterns where the position between holes matters more than the hole size. Ty
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Coordinate Measuring Machine tolerances: what is realistic and what it costs
Coordinate Measuring Machine is a measuring machine that probes points on a part and compares them with the nominal geometry It is used for verifying dimensions and geometric tolerances on finished parts. Typical values:
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CNC Milling tolerances: what is realistic and what it costs
CNC Milling is a cutting process where a rotating multi tooth tool removes material from a stationary workpiece It is used for producing flat faces, pockets, slots and contoured surfaces on prismatic parts. Typical value
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CNC Turning tolerances: what is realistic and what it costs
CNC Turning is a cutting process where the workpiece rotates and a single point tool removes material It is used for producing diameters, faces, grooves and threads on rotational parts. Typical values: typical tolerance
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Hard Milling tolerances: what is realistic and what it costs
Hard Milling is milling material in its hardened state, usually above 45 HRC, with coated carbide or ceramic tools It is used for finishing hardened tool steel and bearing steel without grinding or EDM. Typical values: h
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Thread Milling tolerances: what is realistic and what it costs
Thread Milling is cutting a thread with a rotating cutter that interpolates a helical path, rather than with a tap It is used for threads in hard material, large threads and threads that must be concentric with another f
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Deep Hole Drilling tolerances: what is realistic and what it costs
Deep Hole Drilling is drilling holes deeper than about ten times the diameter, with guided tools and high pressure coolant It is used for cooling channels, hydraulic bores and long oil ways that cannot be reached with a
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Honing tolerances: what is realistic and what it costs
Honing is an abrasive finishing process that uses expanding stones to correct bore geometry It is used for holding roundness, straightness and a controlled surface pattern in a bore. Typical values: diameter range 5 to 5
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Lapping tolerances: what is realistic and what it costs
Lapping is a fine finishing process where the part is rubbed against a lap with a loose abrasive slurry It is used for achieving extreme flatness and a very fine finish on sealing and gauging faces. Typical values: flatn
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