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Symptom | Possible Cause | Corrective Action |
---|---|---|
Poor texture after drawing (glaring included) ※Glaring: Glaring of wire texture found by visual inspection. |
Seizure due to poor lubrication. | Change the shape specifications (Bell-to-approach angle adjustment, etc.) |
Transfer to wires due to poorly polished inner surface of the die. | Change the row stone. (If SD is used, change it to AD or change the grain diameter.) | |
Wires scraped by sharp corners of the reduction-to-bearing section. | Change to the corner adjustment specifications. | |
Wire tendency | Asymmetry of the die shape. | Investigation is required. |
Incorrect incoming angle. | If the concentricity with the hole based on the case periphery has shifted, the case needs to be corrected. | |
Wire breakage | Bearing part "too long" | Change the shape specifications (Bearing length adjustment) |
Reduction of area "high" | Change the shape specifications (Reduction angle adjustment or Bearing length adjustment) | |
Drawing force "large" due to "large" wear | Consultation is required. | |
Wire diameter after drawing "small" | Bearing part "too long" | Change the shape specifications (Bearing length adjustment) |
Reduction angle "too large" | Change the shape specifications (Reduction angle adjustment) | |
Short life | Concentricity of wire with the die hole is shifted. | Consultation is required. |
Thermal problems due to poor lubrication. | Change the shape specifications (Bell-to-approach angel adjustment) |