设计指南:数控车削

Our basic guidelines for CNC turning include important design considerations to help improve part manufacturability, 加强化妆品外观, 并减少总体生产时间.


大小

最大尺寸

直径 3.95 in.
长度 9 in.
直径
100.33mm
长度 228.6mm

最小尺寸

直径 0.16 in.
长度 0.05 in.
壁厚 0.020 in.
30°
直径 4.07mm
长度 1.27mm 
壁厚 0.51mm 
30°

 

Small features may be allowed, but the diameter in any region should not be less than 0.030 in. (0.76mm). Sharp conical points are allowed; angles should be greater than 30 degrees. 壁厚度小于0.020 in. (0.5mm) typically do not survive the machining process. For specific turning dimensions by material, see 加工的最大零件范围.

Typically, Protolabs can maintain a machining tolerance of +/- 0.005 in. (0.13mm).


生活工具的能力

Our lathe machines contain live tools that allow additional milled features to be added to turned parts including flats, 槽, 和沟槽. 皇冠游戏大厅app下载还可以添加on-axis, 轴向, 和径向孔转零件, but only support holes that are either parallel or perpendicular to the axis of revolution, and we cannot accommodate holes at odd angles for hard metals. We can mill off-axis holes on turned parts machined from aluminum or brass.


数控加工表面光洁度指南

 Get a realistic snapshot of the surface finishes that are possible on machined plastic and metal parts.

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数控加工设计要点“,

We've compiled some of our best design tips to help you optimize your part design for CNC machining.

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材料


VIEW MATERIALS >


阳极氧化和镀铬

Add these specialized finishes to your order to extend the life and improve the look of your parts. 

阳极氧化
Reduce corrosion and add an appealing metallic coloring to your aluminum parts. 阳极氧化有助于防止划伤, 起到绝缘体的作用, and is one of the most durable finishes available.

规格:

  • II型
  • 通过无铅认证
  • 类1(清晰)
  • 二班(黑)

镀铬酸
Protect your parts from corrosion while adding electrical conductivity and the ability to paint your part. Note that steel and iron-based metals require pretreating with zinc before applying chromate.

规格:

  • 第一类,非rohs(黄色)
  • II型,ROHS(明确)
  • Class 1A: For maximum protection against corrosion, painted or unpainted
  • Class 3: For maximum protection against corrosion where low electrical resistance is required

表面加工

Parts that are turned typically have a very smooth surface finish. The as-machined surface finish of the cylindrical areas will typically be much smoother using the lathe than the mill, so consider this when selecting the machining method for those parts that qualify for either method. Areas cut with live tooling, such as flats and 槽, may have visible tools marks. If desired, the metal parts can be lightly bead blasted leaving a fine matte finish. Hard metals like steel and stainless steel can also have edges broken (deburred) with a light bead blast to remove metal slivers, 尖锐或粗糙的地方.

边缘破碎,有明显的工具痕迹, 边缘破碎,轻珠爆破, 或者尖锐的边缘上有明显的工具痕迹
所有其他金属 边缘破碎,有明显的工具痕迹 or 边缘破碎,轻珠爆破

螺纹孔

We currently support UNC and UNF threads from #2 up to 0.5 in.,以及从M2到M12的公制线程. Avoid modeling internal threads on your part design.

VIEW THREADED HOLES GUIDELINES >

半径

Sharp inside corners on a part will be radiused (rounded) as a natural result of the CNC machining process. Resulting radii will be identified before the part is milled. Turned outside corners will typically include a 0.005 in. 倒角.


孔和沟槽

皇冠游戏大厅app下载可以在轴上添加, 轴向, 和径向孔转零件, and we support holes that are either parallel or perpendicular to the axis of revolution. Off-axis holes are supported for turned parts machined from aluminum and brass.

文字部分

Text is not supported on turned parts at this time.

开孔尺寸:

  • 轴上和轴向:0.04 in. (1mm)
  • 径向:0.08 in. (2mm), 0.4 in (1mm)的铝和黄铜

槽:

  • 最小外径槽宽:0.047 in. (1.2mm) 
  • Minimum OD groove width for aluminum and brass:0.019 in (0.5mm)
  • 最大外径槽深:0.95 in. (24.1毫米)-随槽宽而变化
  • 此时不支持ID槽

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