Product classification
Stainless Steel Machinery Parts
High hardness, strong corrosion resistance, but significant work hardening tendency (such as 304, 316 austenitic stainless steel).
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Details Introduction
Material characteristics and processing challenges
Characteristic
High hardness, strong corrosion resistance, but significant work hardening tendency (such as 304, 316 austenitic stainless steel).
High temperatures are easily generated during the cutting process, leading to increased tool wear.
Processing difficulties
The cutting tool needs to be resistant to high temperatures (TiAlN coated cutting tools are recommended);
Continuous cooling is required (emulsion or oil-based cutting fluid).
Typical application areas
| Material | Applied economy | Example of representative parts |
| Stainless steel | Medical devices, chemical reactors, food machinery | Surgical instruments, flange seals |
CNC machining methods and process optimization
Tool selection and parameter design
Cutting tools: YG hard alloy (anti chipping edge), TiCN coating;
Parameters: cutting speed of 30-80m/min, feed rate of 0.1-0.3mm/tooth.
Cooling and lubrication technology
Water based cutting fluid: suitable for aluminum alloys and copper, balancing cooling and cleaning;
Oil based cutting fluid: used for stainless steel and titanium alloys to reduce cutting temperature;
High pressure gas cooling: prevents chemical reactions between materials and cutting tools during titanium alloy processing.
Special Process Technology
High speed milling (HSM)
For thin-walled aluminum alloy parts, small cutting depth and high speed (such as 20000 RPM) are used to reduce deformation.
Car milling composite processing
Titanium alloy complex curved parts (such as impellers) can complete multiple processes in one clamping, with an accuracy of ± 0.01mm.
Micro processing
Copper micro heat sinks use tools with a diameter of 0.1mm, and the spindle speed needs to exceed 50000 RPM.
Common Problems and Solutions
Poor surface roughness of stainless steel
Reason: Insufficient concentration of cutting fluid or tool wear;
Solution: Replace the high concentration emulsion and check the integrity of the tool coating.
Future Development Trends
1. Intelligent machining system: Real time monitoring of cutting force and temperature through sensors, automatic optimization of parameters (such as Adaptive CNC);
2. Green manufacturing: promote micro lubrication (MQL) technology to reduce cutting fluid pollution;
3. Additive subtractive composite processing: Integration of 3D printing and CNC precision machining of titanium alloy aviation parts.
Key words:
Testing and Inspection
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