什么是CNC车削？
CNC车削是一种工件高速旋转，固定的单点切削刀具沿X和Z轴移动去除材料的加工工艺。 The result is parts with cylindrical, conical, threaded or contoured profiles — shafts, pins, bushings, nozzles, fittings and more.
Standard CNC lathes are the most economical option for rotational parts up to 400 mm diameter and 1,500 mm length. Adding live tooling to the turret allows milling, drilling and tapping operations in the same setup — eliminating costly repositioning.
Swiss-type CNC turning uses a guide bushing to support the bar stock immediately adjacent to the cutting zone. This eliminates deflection and enables extremely long, slender parts — down to 0.5 mm diameter — at micron-level tolerances. It is the method of choice for medical screws, dental implants and precision electronics.
Choose standard turning for general-purpose cylindrical parts. Choose Swiss when L/D exceeds 10:1 or diameter falls below 6 mm. Add live tooling when cross-features would otherwise require a second machine. See our tolerance guide for detailed capability data.
CNC车削方式
我们运营CNC车床、走心机车削中心和动力刀塔车铣复合机床。
CNC Lathe Turning
2-axis CNC turning is the foundation of cylindrical part production. The workpiece rotates while a stationary cutting tool traverses in X and Z to produce shafts, pins, step-bores, threads and tapers with excellent repeatability.
- Standard tolerance ±0.01 mm
- Max diameter 400 mm
- Max length 1,500 mm
- Internal and external threads
Ideal for: shafts, pins, spacers, threaded fasteners, pulleys
CNC Turning with Live Tooling
Live-tooling lathes add rotating milling and drilling heads on the turret. Cross-holes, keyways, flats and off-centre features can all be machined without moving the part to a milling centre — saving setups and maintaining concentricity.
- Milling, drilling & tapping in one setup
- Off-centre and angular features
- Slot, flat, cross-hole in single clamping
- Better concentricity than multi-setup
Ideal for: valve bodies, hydraulic fittings, shafts with keyways or cross-holes
瑞士型CNC车削
Swiss-type lathes guide the bar stock through a guide bushing, supporting it right at the cut. This near-zero deflection setup allows extremely slender parts — down to 0.5 mm diameter — to be machined to micron-level precision at high feed rates.
- Min diameter 0.5 mm
- Tolerance to ±0.003 mm
- Ideal for long, slender parts
- High-volume production efficiency
Ideal for: medical pins, watch parts, dental screws, micro-shafts, electronics
车削规格
按机型划分的快速参考规格。
| 规格 | CNC车床 | 走心机 |
|---|---|---|
| 标准公差（直径） | ±0.01 mm | ±0.005 mm |
| 高精度公差 | ±0.005 mm | ±0.003 mm |
| 最大车削直径 | 400 mm | 32 mm |
| 最大车削长度 | 1,500 mm | 300 mm |
| 最小直径 | 2 mm | 0.5 mm |
| 表面粗糙度Ra | 0.8 μm std | 0.4 μm std |
| 螺纹标准 | M, UNC, UNF, BSPT | M, UNC, UNF |
| 动力刀塔 | Available | Available |
公差取决于材料、L/D比和特征几何形状。如需关键尺寸的DFM审查，请联系我们。
可车削材料
我们车削50多种金属和工程塑料：
表面处理
所有表面处理均可在厂内完成。
原车削面
Ra 1.6–3.2 μm direct off the lathe. Tool marks visible but functionally clean surfaces.
研磨
Post-turn cylindrical grinding to Ra 0.2–0.4 μm for bearing journals, sealing surfaces and precision fits.
阳极氧化
Type II or Type III hard anodizing for turned aluminum parts. Excellent corrosion and wear resistance.
电解抛光
Electrochemical smoothing for stainless steel turned parts. Ideal for FDA/medical applications.
镀镍
Electroless nickel for uniform thickness on complex turned geometries. Excellent corrosion resistance.
Black Oxide
Conversion coating for steel turned parts — mild corrosion resistance, no dimensional change.
Passivation
Stainless steel chromium-oxide layer restoration after machining. ASTM A967 compliant.
抛光
Manual or mass-media polishing to mirror Ra <0.1 μm for shaft surfaces and hydraulic components.
CNC车削设计指南
遵循这些指南有助于获得准确报价并确保制造可行性。
- L/D ratio below 10:1 for standard turning — slender parts beyond this ratio need steady rest support or Swiss-type machines.
- Internal bore diameter minimum 6 mm for standard boring bars. Smaller requires Swiss-type or gun drilling.
- Thread reliefs and undercuts add setup time — only specify where functionally necessary.
- Specify concentricity and runout as GD&T callouts on 2D drawing, not just dimensional tolerances in the model.
- Knurling, O-ring grooves and thread forms should be called out on the drawing with form standard (e.g. 60° Unified thread).
- Material selection matters for turning: free-machining grades (303 SS, C360 brass) cut faster and cheaper than work-hardening grades (316L, Ti).
服务行业
我们的CNC车削能力服务于六大行业的高要求应用。
准备好车削您的零件了吗？
上传CAD文件，24小时内获得详细的CNC车削报价，无最小起订量。
Need milling too? Shafts with keyways, valve stems with hex drives, threaded parts with milled flats — run the whole job through our combined milling- and-turning shop instead. Same factory, same engineer, one quote, no fixturing re-stack error.
See CNC Milling + Turning Services
