Mould manufacturing is the cornerstone of modern industrial production, its accuracy and efficiency directly affect product quality and production costs. With the transformation and upgrading of manufacturing industry, CNC machining technology has become the core means of mould manufacturing. This article will systematically introduce the whole process of mould CNC machining.

Comprehensive guide to CNC machining of moulds

I. what is the mould CNC machining?

Mould CNC machining refers to the use of computer numerical control (CNC) equipment for precision machining of mould technology. It controls the action of the machine tool through pre-programmed instructions to complete the cutting, drilling, milling and other operations on metal, plastic and other materials, and ultimately manufacture high-precision mould parts.

II. the core advantages of CNC machining

High precision: CNC machine tools can achieve micron-level processing to meet the stringent requirements of the size of the mould.

High efficiency: automated processing to reduce manual intervention, significantly improve productivity.

Flexibility: through the modification of the program can be adapted to the processing needs of different moulds.

Consistency: CNC machining can ensure a high degree of consistency of batch products.

III. Main processing flow

Design stage: 3D design of the mould using CAD software .Generate machining path and G code by CAM software.

Preparation stage: Select suitable tools and fixtures. Clamping the workpiece and setting the coordinate system

Machining phase: Roughing: quick removal of most of the allowance. Semi-finishing: to leave a uniform allowance for finishing.

Finishing: to achieve the final dimensions and surface requirements

Post-processing stage: Deburring and polishing. Quality inspection and dimensional verification

IV. Key technical points

Tool selection: Select tool material according to material characteristics. Reasonable setting of tool parameters and cutting dosage

Machining parameters: Optimised setting of speed and feed rate. Reasonable distribution of cutting depth and width

Clamping design: Ensure accurate positioning of the workpiece. Provide sufficient clamping force

V. Common processing methods

Milling: the most commonly used method of mould processing

DM: Handling high hardness materials and complex shapes.

Wire-cutting processing: to achieve precision contour processing

Deep hole drilling: to complete the deep hole machining requirements

VI. Quality Assurance Measures

online inspection: real-time monitoring during machining process

Post-measurement: using CMM and other equipment for inspection.

Surface treatment: polishing or texture treatment according to requirements

VII. Development Trend

Intelligent: adding the Internet of Things and artificial intelligence technology

Composite: one equipment to complete a variety of processing procedures

High-speed: to improve processing efficiency and precision

practical advice:

Regular maintenance of equipment. Establish a standardised processing procedure library

Strengthen the operator training. Pay attention to the collection and analysis of processing data

Conclusion

Mould CNC machining is an important technology in modern manufacturing industry. Mastering its basic principles and operating points, combined with the actual production needs to optimize the process, can effectively improve the quality of mould processing and production efficiency. With the development of technology, the application of CNC machining in the field of mould manufacturing will be more extensive and in-depth.

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