Frequently Asked Questions
The following are some common questions and answers in sheet metal, stamping, spring and CNC processing.
Sheet Metal Processing FAQs
When selecting materials for sheet metal processing, it is necessary to consider the material’s strength, corrosion resistance, electrical and thermal conductivity, etc., and conduct comprehensive consideration based on actual needs and application scenarios.
Controlling the processing technology, strictly executing the technological requirements, and making timely measurements and adjustments during the processing process can effectively solve the problem of dimensional deviation.
Common surface issues include unqualified surface roughness, poor coating adhesion, and easy corrosion. Choosing the appropriate surface treatment method can ensure the surface smoothness and coating adhesion.
Adopting appropriate process methods, such as pre-bending, appropriately increasing the material thickness, and rationally selecting dies, can reduce or avoid deformation.
Stamping Processing FAQs
The three key elements in stamping production are reasonable stamping technology, advanced dies, and efficient stamping equipment.
Control the clearance between the punch and die to ensure appropriate clearance, and regularly check the wear of the cutting edge, replacing worn-out cutting edges in time.
Optimize the stamping process, such as adjusting the cooperation between the blank holder and the die surface, and reasonably setting the clearance, to reduce deformation.
During flanging, problems such as non-perpendicularity, inconsistent height, pulling marks, and cracking may occur. It is necessary to reasonably adjust the clearance between the punch and die and positioning accuracy.
CNC Machining FAQs
Excessive cutting speed will lead to fast tool wear, affecting processing quality and tool life.
Selecting appropriate cutting tools, reducing cutting amount, and increasing cutting speed can improve the quality of the processed surface.
Calibration of tools, optimization of tool paths, and selection of appropriate cutting parameters can reduce dimensional deviations.
Slowly starting and stopping the cutting process, selecting appropriate cutting parameters, and using suitable cutting tools can reduce the risk of material damage.
Springs Processing FAQs
The gap between the spring inner diameter and the guide shaft should be moderate. If the gap is too small, it will cause wear of the spring, leading to fracture; if the gap is too large, it may cause the spring to twist and break. The optimal gap is usually 1mm less than the spring inner diameter.
Music wire: Recommended operating temperature is between 0~40°C.
304 stainless steel: Recommended operating temperature is between -10~100°C.
SUS631 stainless steel: Recommended operating temperature is below 300°C.
- Wear and tear caused by too small a mandrel or horizontal use of the spring.
- Compression deformation due to too small a mandrel, uneven mounting surface, or poor parallelism of the two positioning surfaces.
- Mandrel too short and not chamfered at the end, causing friction and wear with the spring, leading to fracture.
- Using foreign objects between the spring coils, reducing the actual number of effective windings, causing high stress and fracture.
Handle springs gently during processing to avoid excessive changes in outer diameter and twisting deformation.
Pay special attention to the operations of each process when rolling springs with large pitch and coil ratio, such as slow reversal speed and gentle handling of the rolled spring blank.
Arrange springs neatly in the furnace, and use auxiliary tools for springs with special shapes or prone to deformation.
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