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CNC milling belongs to the machining process, it can be used to create complex 3D shapes or to apply a machined feature or surface to parts for both plastics and metals. The machinery is the most important element for the process of milling, Premium precision machine inc uses multi-axis milling machines includes the 3&4&5 axis that creates many different parts types and features of complex geometries. That means can be slots, angled shapes, holes, curves, circulars, and channels.
Most materials are available | Metal | Aluminum, Steel, Stainless Steel, Magnesium, Titanium, Zinc, Brass, Bronze, Copper |
Plastic | ABS, PC, ABS+PC, PP, PS, POM, PMMA (Acrylic), PAGF30, PCGF30, Teflon, DHPE, HDPE, PPS, PEEK | |
Finishing option to meet your part property | Anodized, Powder coating, Electroplating, Hardness, Black Oxide, High polish, Bead blasting, Silk-screen, Painting, Nitriding and clients required | |
Features | Deburring, Drilling, Tapping, Knurling, Threading, Reaming, Milling, Grinding | |
Maximum Dimensions | 200mm*300mm*45mm | |
Minimum Tolerance | Metal | +/-0.005mm |
Plastic | +/-0.02mm | |
Fast Turnaround | Min 3 days | |
CNC milling is a certain type of CNC machining services, a machining process suitable for high accuracy and high tolerance parts in prototype and small to medium production runs. Some milling machines can achieve tolerances of up to and greater than +/- 0.005mm. The versatility of the milling process allows it to be used in a wide range of industries and for a variety of part features and designs, including slots, chamfers, threads, and pockets. The most common CNC milling operations include Face milling, Angular milling, Form milling, Plain milling.
CNC milling is often grouped by the number of axis, from 3 to 5 axis. Each axis is labeled using a specific letter. For instance, X and Y axis stands for the horizontal movement of the mill's workpiece. The Z-axis designates vertical movement and the W axis represents the diagonal movement across the vertical plane.
There are lots of options of materials for CNC milling technology, please see the brief introduction below and check which material you should choose for your application.
Material | Grade | Hardness | Strength | Machinability | Typical applications |
Aluminum | 5083 | Low | Medium | ★★★★★ | Marine applications, Construction, Pressure vessels |
6061 | Medium | Medium | ★★★★★ | General-purpose, Aircraft components, Automotive parts, Bicycle frames, Food containers | |
6082 | Medium | Medium | ★★★★★ | General-purpose, Automotive parts, Food containers | |
7075 | Medium | High | ★★★★ | Aircraft & aerospace components, Automotive parts, Marine applications, Sports equipment | |
Stainless Steel | 303 | High | High | ★★★ | Aircraft components, Machine parts, Nuts, bolts, gears, bushings |
304 | Medium | High | ★★ | General-purpose, Medical devices, Food industry, Marine applications, Chemical processing | |
316 | Medium | High | ★★ | Food preparation equipment, Marine applications, Architecture, Surgical implants, Chemical containers | |
Mild Steel | 1018 | Medium | Medium | ★★★ | General-purpose, Machinery parts, Jigs & fixtures |
1045 | High | Medium | ★★ | General-purpose, Machinery parts | |
A36 | Medium | High | ★★★ | Construction, Machinery parts, Jigs & fixtures | |
Alloy Steel | 4140 | High | Medium | ★★ | General-purpose, Machinery parts, Tooling |
4340 | High | High | ★★ | Aircraft landing gear, Power transmission, Tooling | |
Tool Steel | D2 | Very High | High | ★ | Cold-working tooling, Dies & stamps, Cutting tools & knives |
A2 | Very High | High | ★ | Cold-working tooling, Dies & stamps | |
O1 | Very High | High | ★ | Mechanical parts, Valves & nozzles, Architecture | |
Brass | C36000 | Medium | Medium | ★★★★★ | Mechanical parts, Valves & nozzles, Architecture |
Material | Strength | Operating temperature | Machinability | Typical applications |
Polycarbonate (PC) | High | Up to 120℃ | ★★ | Architecture, Automotive, Electronic enclosures, Food containers |
ABS | Medium | Up to 60℃ | ★★★ | Automotive, Electronic enclosures, Pipes & fittings, Consumer products |
Nylon | High | Up to 100℃ | ★ | Automotive parts, Mechanical parts, Fasteners |
POM | Medium | Up to 82℃ | ★★★★ | Mechanical parts, Electronic enclosures, Bushings & fittings |
PTFE(Teflon) | Low | Up to 260℃ | ★★★★ | High-temperature applications, Chemical processing, Electronic enclosures, Food processing |
PEEK | High | Up to 260℃ | ★★ | Medical applications, Chemical processing, Food processing, High-pressure valves |
HDPE | Low | Up to 80℃ | ★ | Chemical containers, Pipes & fittings, Consumer products |
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