Machining (machining): core technologies and applications for modern manufacturing

Machining (机加工): Core technologies and applications for modern manufacturing
Machining (referred to as machining) is a manufacturing process of cutting, forming and other processing of workpieces through mechanical equipment to obtain the desired shape, size and surface quality. As the basic process of manufacturing, machining technology directly affects product quality, performance and productivity.

Main classifications and methods of machining
Conventional Cutting
Turning: workpiece rotation, tool movement, suitable for shafts, disc parts

Milling: the tool rotates and the workpiece moves, suitable for flat surfaces and grooves.

Drilling: specialised in hole processing, including drilling, reaming, reaming, etc.

Grinding: for high-precision surface machining up to IT6 accuracy

Modern speciality processing
EDM: for complex profiles in high hardness materials.

Laser processing: high precision, non-contact characteristics

Ultrasonic machining: precision machining for brittle materials

Water jet cutting: no heat affected zone, environmentally friendly and efficient

Application of CNC technology in machining
The popularity of numerical control (CNC) machine tools has brought machining into the digital age. Through computer programming and control, the machining process is automated and intelligent:

Machining accuracy up to ±0.005mm

Increase productivity by 3-5 times

One person can operate multiple machines

Significant improvement in product quality stability

Machining key technical parameters
Three elements of cutting
Cutting speed: Selected according to material hardness

Feed: affects surface roughness

Depth of cut: determines machining efficiency

Accuracy Classification
Roughing: IT12-IT11

Semi-finishing: IT10-IT9

Finishing: IT8-IT7

Superfinishing: IT6 and above

Machining quality control system
Process control points
First Article Inspection System

Process Inspection System

Tool life management

Periodic calibration of equipment

Means of detection
Coordinate measuring machine

Optical projector

Surface Roughness Gauge

Hardness testing equipment

Application areas of the machining industry
aerospace
Engine blade processing

Manufacture of aerospace structural components

Accuracy requirements: 0.005-0.01mm

automobile manufacturing
Engine Block Cylinder Head

Transmission Gear

Annual production of more than one million pieces

medical equipment
Surgical Instrument Finishing

Implant Manufacturing

Aseptic environment requirements

Considerations for Choosing Machining Services
Technical capacity assessment
Equipment brands and models

Maximum processing size

Accuracy assurance capability

Experience in processing special materials

Quality System Certification
ISO9001 quality system

IATF 16949 (automotive industry)

ISO13485 (medical devices)

Service guarantee capacity
on-time delivery rate

Emergency response speed

Technical Support Level

Development trend of machining
Intelligent direction
Internet of Things technology applications

Adaptive processing systems

digital twin

green manufacturing
Dry cutting technology

Tool recycling

Energy consumption monitoring

Composite processing
Turning and milling centre

combination of additive and subtractive material

On-line testing integration

结束语
machiningAs the basic process of manufacturing, it plays an irreplaceable role in modern industrial production. With the continuous emergence of new technologies and materials, machining technology is developing in the direction of higher precision, higher efficiency and more intelligent. Choosing a professional machining service provider requires comprehensive consideration of its technical strength, quality system and service capabilities to ensure optimal machining solutions.