Deformation and cracking may come from the structure, mold filling, debinding, support, temperature rise and fall, sintering shrinkage and material state. Process evidence must be retained during investigation.
Interpret the relationships between variables, not a single parameter
Troubleshoot MIM parts deformation and cracking based on defect location and process evidence.
Observe position and direction
Recording the crack origin, deformation direction, thickness changes, gate location and support contact area is more diagnostic than just describing 'post-sintering deformation'.
Troubleshoot manufacturing causes step by step
Check injection stress and density difference, debinding integrity, placement and support, temperature uniformity and shrinkage constraints in order to avoid large adjustments to multiple parameters at the same time.
Then judge the powder adjustment direction
Re-evaluate sieving, compounding, or materials programs when batch size, morphology, oxygen content, or feedstock status have a consistent relationship with defect changes.
Discuss your powder project
Share the process step, operating conditions and part result you want to improve.
- Current material, powder or part issue
- Process step and observed symptom
- Available particle-size, composition, dimensional or performance data
- Equipment, process conditions and desired outcome
Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.