Debinding defects may arise from feedstock uniformity, part wall thickness, heating and debinding-medium pathways, supports or earlier forming steps. They should not be attributed to the powder alone.
Interpret the relationships between variables, not a single parameter
Troubleshoot MIM cracking, bubbling and residue by defect stage, feedstock, structure and debinding path.
Identify the stage of defect occurrence first
Record whether defects appear after injection, during debinding or after sintering, and compare defect locations, wall thickness changes and batch patterns.
Check feedstock and part structure
Powder-binder separation, uneven mixing, injection stress, sudden changes in thickness and closed areas can all increase the difficulty of gas or liquid migration during the debinding phase.
Separate evaluation of debinding and sintering
First confirm the integrity and residual state of the green body after debinding, and then judge sintering cracking or deformation to avoid tracing all subsequent defects back to the powder particle size.
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.