Investigate dimensional drift after sintering, local warpage and batch-to-batch shrinkage variation through powder packing, feedstock solids loading, injection density, debinding, supports and sintering furnace batches.
This page is a typical project plan and does not correspond to a specific customer name or unconfirmed delivery results.
Divide similar projects into four executable links
Disassembled by powder, feedstock, injection, debinding, support and sintering heats MIM Shrinkage and dimensional fluctuations.
Project Goal: Establish a stable dimensional baseline
Define the critical dimensions, measurement locations, part condition during measurement and allowable variation. Then compare the mold dimensions with those of the as-molded, debound and sintered parts.
Common difficulties: Multiple variables present the same shrinkage problem
Particle-size distribution, solids loading, compounding uniformity, as-molded density, part placement and support, furnace temperature and atmosphere can all affect shrinkage or warpage.
Tongcheng solution: Compare powder batches with customer processes
Compare particle size curves, powder batch numbers, feedstock batch numbers, injection conditions and sintering heats, and adjust sieving, compounding or material plans after confirming the correlation.
Verification Focus: Size, Density and Defect Trends
Record shrinkage, critical dimensions, density, warpage, cracking and surface using fixed measurement methods and confirm improvements are stable with successive batches.
The engineering team can further evaluate based on actual grade, particle size, process, target results and procurement plan.
Discuss your powder project
Share the process step, operating conditions and part result you want to improve.
- Part name, drawings, structure and usage conditions
- Current Materials, Powder Sizes and Manufacturing Routes
- Current defects, inspection data and target improvement results
- Estimated purchase volume, project stage and delivery countries
Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.