CNC (Computer Numerical Control) turning is a precision manufacturing process where a computer-controlled lathe removes material from a rotating workpiece to create cylindrical parts. The process is ideal for producing components with rotational symmetry, such as shafts, bushings, and bolts. Advantages: Precision & Repeatability: Tight tolerances (±0.001 inches) for high-volume production. Complex Geometries: Live tooling enables combined turning/milling. Efficiency: Automated tool changes reduce downtime. Material Savings: minimal waste compared to manual methods.
Our CNC turning processes work with a diverse array of materials, including machine-grade metals and plastics. Whether you need precision turning of aluminum parts or other materials, we can produce accurate rapid prototypes and low-volume production runs to meet your needs. Check out some of the common materials for your CNC turning projects
| Description | |
|---|---|
| Aluminum | AL6061/ AL5052/ AL2024/ AL7075/ AL5083/ ADC12/ AL6082 |
| Stainless Steel | SUS301/ SUS303/ SUS304/ SUS316/ SUS316L/ SUS420/ SUS430/ SUS630/17-4PH/ SUS321 |
| Alloy Steel | Q235（A3Steel/ C45/ Cr12/ 3Cr13/ GCr15/ 40Cr/ 65Mn/ SKD11/ Steel 1018/ Steel 1020/
High speed steel/ Cold rolled steel/ Bearing steel/ SPCC |
| Stainless Steel | SUS301/ SUS303/ SUS304/ SUS316/ SUS316L/ SUS420/ SUS430/ SUS630/17-4PH/ SUS321 |
| Copper Alloy | H59/ H62/ H68/ H80/ Tin Bronze/ C17200/ Aluminum Bronze |
| Titanium | TA1/ TC4 |
| Plastic | ABS/ PTFE/ POM/ Bakelite/ PMMA/ PP/ PPS/ FR4/ HDPE/ LDPE/ PA6/ PA66/ PC/ PVC/ PU/ PEEK/
|
| Special Materials and Others | Carbon Fiber /Glass Fiber |
With a wide selection of surface finishes, Sinorise can help improve the surface qualities of your products. Surface finishes applied to your CNC turned parts aim at improving their appearance, surface hardness and roughness, chemical and corrosion resistance, etc. They also help hide any visible tool marks from areas cut with live tooling. Here are some of your top choices.
Machined surface is directly from CNC machine and it is cost effective BUT coming with tooling marks
Anodizing can improve the corrosion resistance of parts and can also be dyed, making it the most suitable for aluminum alloy parts
Polishing smoothes metal surfaces, minimizing roughness to create a high - gloss look that boosts their visual allure.
Sandblasting propels pressurized sand or alternative media onto the surface. This action both cleans the surface and imparts a consistent, matte texture.
Electropolishing, a chemical treatment method, refines and brightens metal surfaces, concurrently enhancing their resistance to corrosion.
Heat treatment modifies the mechanical characteristics of metal, aiming to heighten its hardness, strength, or enhance its ductility.
A brushed finish produces a one - way satin - like texture, which diminishes the appearance of marks and scratches on the surface.
The powder coating process can form a strong and wear-resistant coating surface, with the significant advantage of providing rich color choices and texture expression, while also having a wide range of substrate adaptability.
Electroplating adheres a thin coating of metal layer to components. This process serves to enhance their wear resistance, safeguard against corrosion, and boost surface conductivity.
Black oxidizing, a conversion coating technique applied to ferrous metals, not only enhances their corrosion resistance but also reduces light reflection.
As an ISO 9001-certified company, we machine CNC turning lathe parts to meet tight tolerance requirements. Based on your design, our CNC lattes can reach tolerances of up to ±0.005”. Our standard tolerances for CNC-milled metals are ISO 2768-m and ISO 2768-c for plastics.
| Description | |
|---|---|
| Maximum Part Size | Typically up to 500 mm in diameter and 1500 mm in length, though larger sizes can be accommodated with specific
equipment. |
| Minimum Part Size | As small as 1 mm in diameter, depending on the material and machining setup. |
| General Tolerances | Standard tolerances of ±0.01 mm; tighter tolerances down to ±0.005 mm can be achieved based on the material and complexity of the part. |
| Lead Time | Standard lead times range from 3-7 days for small batches. Expedited services are available, reducing lead time to 24-
48 hours depending on part complexity and material availability. |
CNC turning produces cylindrical and symmetrical parts around their axis. This process is typically used for manufacturing items like shafts, pins, rods, bushings, and pulleys. It’s also well-suited for creating external threads, internal boreholes, and even complex contours on cylindrical surfaces. The precision of CNC turning allows for tight tolerances and a smooth finish, making it ideal for parts that require exact fits and movements, commonly found in automotive, aerospace, and manufacturing machinery.
CNC milling and CNC turning are both subtractive manufacturing processes, but they differ in how the material is removed. In CNC milling, the workpiece is stationary, and the cutting tool moves across multiple axes to remove material and create the desired shape. This process is ideal for complex parts with various features such as slots, holes, and contours. On the other hand, CNC turning involves rotating the workpiece while a stationary cutting tool removes material. This method is best suited for producing cylindrical parts, such as shafts, rings, and bolts. While milling can handle more complex geometries, turning is typically faster and more efficient for producing round parts.
Yes, CNC turning is versatile enough to handle various materials, including plastics. Plastics commonly turned on CNC lathes include ABS, Polycarbonate, PTFE (Teflon), Nylon, and Acetal. Each material offers different properties; for instance, Nylon is known for its strength and friction resistance, while Acetal provides excellent machinability and dimensional stability. Turning plastics requires precise control of cutting speeds and tool selection to prevent melting or deformation, ensuring the production of high-quality, precise parts suitable for a range of applications.
A CNC turning center is a computer-controlled machine designed to manufacture cylindrical parts with precision. It is capable of producing a wide range of components, including shafts, pins, screws, bushings, and other intricate parts. Highly versatile, the CNC turning center can perform various operations such as facing, turning, threading, grooving, drilling, and even complex contouring. Its advanced automation allows for consistent production quality and efficient handling of both simple and complex CNC turning parts across different industries.
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