Phone Number : 008615195010186
March 27, 2026
After the die casting process, the aluminum alloy chair arms' rough cast parts need to be cut runners, use files or sanding paper to trim the rough casting parts to clean flash and burr. Then the trimmed chair arms can be sent to machining (drilling, tapping, etc.). The machining process requires fixtures or jigs to hold these chair arms, but burr and flash can affect machining precision. And in the machining process, the chair arms will have scratch marks. After machining, we will polish the chair arms again to achieve a smooth, bright surface.
For a free quote of aluminum alloy chair spare parts and molds, please contact: cnkylt@aliyun.com
Material: H13 / SKD61 hot-work tool steel
Includes cooling channels, ejector system, and parting line design
Alloy types: ADC12, A380 aluminum ingots (recycled or virgin)
Quality check for impurities and composition
Melting temperature: ~660°C
Degassing and filtration to reduce porosity
Machine tonnage: 180–1260 tons
High-pressure injection into the mold cavity
Cycle time: seconds to minutes, depending on part size
Automatic ejection via ejector pins
Robotic or manual handling for the next stage
Trimming: Removal of gates and flash
CNC Machining: Drilling, tapping, milling for precise fit (tolerance ±0.01mm)
Surface Finishing: Polishing, shot blasting, powder coating, electroplating, or e-coating
Dimensional check: CMM (Coordinate Measuring Machine)
Visual inspection, X-ray for internal defects
Mechanical testing: Tensile strength, hardness
Optional assembly (e.g., wheel installation, bearing fitting)
Custom packaging per client requirements
For a free quote of aluminum alloy chair spare parts and molds, please contact: cnkylt@aliyun.com
