VT machining offers CNC Gear Hobbing for 20CrMnTi Steel (GB/T 3077 / ~SCM420 type), typically supplied normalised, then carburised. Chinese carburising gear steel; Ti refines grain.
CNC Gear Hobbing Notes for 20CrMnTi Steel
Gear teeth in 20CrMnTi Steel are cut soft, then heat-treated and ground to class.
Process Data for CNC Gear Hobbing 20CrMnTi Steel
| Heat-treat route | Carburise & harden (58-62 HRC case) |
|---|---|
| Accuracy as cut | ISO 1328 class 8-9 (AGMA 9-10) |
| Module range | 0.3-6 |
| Hobbing speed (HSS-E / carbide) | 45 / 135 m/min |
| Hob | HSS-E (PM) coated hob; carbide for dry hobbing |
| Gear types | External spur and helical, splines, worm wheels |
Typical values for 20CrMnTi Steel, Normalised, then carburised; confirmed on the first part.
20CrMnTi Steel Data Relevant to CNC Gear Hobbing
| Equivalent designations | GB/T 3077 / ~SCM420 type |
|---|---|
| Typical supply condition | Normalised, then carburised |
| Hardness (typical) | ~58-62 HRC case |
| Tensile strength | ~1080 core MPa |
Typical values; we work to your drawing and mill certificate.
More on CNC Gear Hobbing Steel
Finishing options, quality documentation and general cnc gear hobbing guidance for all steel grades are on our CNC Gear Hobbing Steel page.
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Quoting CNC Gear Hobbing 20CrMnTi Steel
Send a STEP/IGES model or PDF drawing, confirm 20CrMnTi Steel and its condition (we usually see it supplied normalised, then carburised), the quantity, critical tolerances and any finish or certificate requirements.
20CrMnTi Steel in Other Processes
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Send the drawing, the 20CrMnTi Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
How clean are the edges produced by CNC Gear Hobbing on 20CrMnTi Steel?
Machined 20CrMnTi Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Can VT machining make custom 20CrMnTi Steel parts to my drawing?
Yes. 20CrMnTi Steel gear cutting is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
What surface finish is achievable on 20CrMnTi Steel with CNC Gear Hobbing?
Surface finish on 20CrMnTi Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What is CNC Gear Hobbing 20CrMnTi Steel and how is it done?
CNC Gear Hobbing 20CrMnTi Steel refers to gear hobbing generates gear teeth with a rotating hob synchronized to the workpiece. Applied to 20CrMnTi Steel — strong, economical and widely available — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.