High Quality CNC Machining Service Online

Our advanced CNC machining services encompass a wide range of materials, allowing us to manufacture machined parts in metals and plastics with exceptional accuracy. From prototyping to production runs, we specialize in crafting custom CNC parts tailored to your exact specifications. With a precision numerical control machining method, CNC rapid prototyping can process raw materials to produce parts that meet customers’ requirements. CNC prototype has good surface quality, especially when complete surface painting and silk-screening, a CNC prototype is even more beautiful than plastic injection products.

Leveraging extensive expertise in CNC programming and processing, Guantai seamlessly integrates cutting-edge modern technologies with seasoned craftsmanship to deliver CNC machining services at a high standard. Our industry-recognized advanced CNC software and high-precision machining facilities, coupled with extensive experience in CNC management, ensure positioning accuracy of 0.01 / 300mm and a processing accuracy within ± 0.05mm. This exceptional machining accuracy empowers us to furnish dependable proofs for size data verification in new product designs, ensuring precision and reliability at every stage.

CNC Machining: Definition, Process

What is CNC machining?

CNC machining services utilize specialized equipment controlled by computer programs to create custom parts based on detailed design specifications. Precision parts of various materials such as metal, plastic, wood, and more can be machined through this manufacturing process.

CNC machining process:

Design CAD model of the part.
Programming instructions for tool paths and parameters.
Set up the machine with cutting tools and workpieces.
Executing precise cuts guided by the CNC controller
Monitoring the operation for adjustments
Conducting quality checks

Different Types of CNC Machining Operations

CNC (Computer Numerical Control) machining includes various machining methods that can be flexibly combined according to the shape and requirements of the parts to achieve efficient and high-precision processing. Here are some common CNC machining processes:

CNC Milling

In CNC milling, a sharp tool spins around and moves, while the object being worked on stays still. This movement cuts into the material to shape it. The tool or the material can move in different directions to create the final part.

CNC Turning (Lathe)

CNC turning utilizes a lathe to rotate the workpiece, while a cutting tool shapes it by moving in and out. This process is ideal for creating cylindrical parts, such as shafts, pins, and custom components.

CNC Drilling

CNC drilling focuses on creating precise holes in a workpiece using specialized drill bits controlled by a CNC machine. Essential for industries like construction, automotive, and aerospace for creating holes in components for assembly or fastening.

CNC Grinding

CNC grinding involves using abrasive cutting to shape and finish parts to very tight tolerances. This process is crucial for achieving highly precise and smooth surfaces.

CNC Electrical Discharge Machining (EDM)

CNC EDM uses electrical discharges to shape material in a controlled manner, particularly for hard or tough materials that are difficult to machine conventionally.

Benefits and Limitations of CNC Machining

CNC (Computer Numerical Control) machining has revolutionized the manufacturing industry with its precision and automation capabilities. Understanding the benefits and limitations of CNC machining is crucial for businesses looking to optimize production processes.

Benefits of CNC Machining

Precision: CNC machining offers high levels of precision, ensuring consistent quality and accuracy in manufactured parts.
Efficiency: It enables automated and fast production processes, reducing lead times and increasing productivity.
Versatility: CNC machines can work with a wide range of materials, allowing for diverse applications in various industries.
Complexity: Intricate and complex designs can be easily achieved with CNC machining, enabling the production of sophisticated parts.
Repeatability: CNC machines can reproduce parts with exact precision, ensuring consistency across multiple batches.

Limitations of CNC Machining

Initial Cost: Setting up CNC machining can be expensive due to the high cost of equipment and software.
Skilled Operators: Operating CNC machines effectively requires trained personnel, adding to labor costs.
Material Limitations: Some materials may be challenging to machine using CNC processes, affecting material choices for certain applications.
Maintenance: Regular maintenance and calibration of CNC machines are essential to ensure optimal performance and accuracy.
Risk of Errors: While CNC machining is precise, errors in programming or machine setup can lead to defects in parts, necessitating careful quality control processes.

Common Materials Used in CNC Machining Parts

CNC machining is one of the most important manufacturing processes for producing metal and plastic parts, the common materials used for CNC rapid prototyping are as follows:

CNC Machined Plastic

Material	Tensile Strength	Temperature Resistance
ABS	40-50MPa	115℃
PC	61MPa	133℃
PMMA	55~57MPa	100℃
PP	29MPa	102℃
PA6	74MPa	58℃
POM(Delrin)	70MPa	110℃
PEEK	103MPa	145℃
PBT	85MPa	66℃
PPS+40%GF	137MPa	260℃

CNC Machine Metal

Material	Grade	Hardness
Aluminum	6061	60-70HRC
Aluminum	6063	75-85HB
Stainless Steel	SUS304	≤90HRB
Stainless Steel	SUS316	≤100HRB
Titanium	Medium	80-100HRB
Carbon Steel	Medium	42-45HRC
Brass		50-100HRB
Copper		75HRB
Zinc Alloy		45-95HRB

Plastic CNC Machine

Plastic CNC machining typically starts with a block of material, which is then shaped by removing material multiple times to achieve the intended form. CNC plastic machining is currently one of the main methods used in prototype model production, primarily processing materials such as ABS, PC, PA, PMMA, POM, and others into physical samples we need. The parts produced through CNC machining have advantages such as large forming dimensions, high strength, good toughness, and low cost, making it the mainstream method for prototype production

Metal CNC Machine

Metal CNC machining uses high-precision numerical control machine tools, which can achieve extremely fine processing with an accuracy level reaching the micron range. This high-precision machining method can meet the processing needs of various complex, high-precision parts, enhancing the quality and performance of products. The basic methods of CNC machining include drilling, turning and boring, milling, grinding, and shaping processes.