JHMIM PM Tooling Capabilities
We engineer high-integrity powder metallurgy compaction dies, precision sizing tools, and multi-cavity structural molds tailored to eliminate compaction stress and post-sintering distortion.
1. Compaction Dies
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Focus: Core rods, upper/lower punches, and multi-level die cavities. We utilize Tungsten Carbide (YG15/YG20) and premium tool steels (D2, M2, CPM10V) to withstand up to 800MPa of vertical compaction pressure without micro-cracking.
2. Precision Sizing & Coining Dies
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Focus: Engineered specifically to correct atmospheric sintering shrinkage distortion. Our ultra-hard sizing dies re-compress parts to lock linear tolerances within ±0.005mm, crucial for robotic micro-gears and automotive drive valves.
3. Multi-Cavity Split Tooling
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Focus: Designed for complex geometries like helical gears, inner/outer rotors, and multi-level sprockets. Integrated split-die technology guarantees flawless part ejection and uniform density distribution.
4. High-Wear Tooling Accessories
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Focus: Precision guide pillars, die holders, bottom mold bases, and core rod support plates, all heat-treated to 58-62HRC to match continuous automatic press lines.
PM Tooling Material Matrix
Compare our optimized engineering profiles for Tungsten Carbide die liners, CPM10V punches, and SKD11 mold bases selected for maximum wear resistance and high compressive yield strength.
| Tool Component | Premium Material Used | Hardness Profile | Engineering Advantage. |
| Die Cavity Liners | Tungsten Carbide (YG15 / C11) | 88−91 HRA | Eliminates abrasive wear from metal powder streams. |
| Punches & Core Rods | CPM10V / SKH9 / M2 | 60−64 HRC |
High compressive yield strength; prevents buckling under heavy load.
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| Die Bases & Holders | A2 / SKD11 / Sintered Steel | 55−58 HRC | Excellent toughness to absorb vertical shock vibrations. |
In-House Precision Manufacturing
Utilizing advanced AGIE wire-EDM cutting and meticulous handcrafted mirror polishing, we hold absolute mold contours within ±0.002mm to prevent micro-cracks during automatic press ejection.
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Sub-Micron Precision EDM: Utilizing AGIE Classic W-EDM and Mikron CNC CNC centers, we wire-cut complex gear profiles with an absolute contour precision of ±0.002mm, avoiding gear mesh noise later.
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Handcrafted Micro-Polishing : Every punch and die cavity underwent a meticulous multi-stage polishing process to achieve a surface roughness profile of Ra0.2 – 0.4mu. This minimizes powder adhesion and ensures frictionless vertical part ejection without scoring marks.
Tooling Asset Protection
JHMIM secures your capital investment with a 500,000-shot mold lifetime guarantee, backed by climate-controlled tooling storage and zero-cost preventative maintenance for all repeat orders.
- Controlled-Atmosphere Tooling Library : All custom client molds are preserved in our strictly monitored, climate-controlled tooling vault to completely eliminate rust, oxidation, or micro-cracking during downtime.
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Lifetime Tooling Maintenance : Once you invest in custom PM tooling with us, we take full financial responsibility for its upkeep. Backed by mandatory post-run ultrasonic cleaning and preventative anti-rust treatments, we guarantee a tooling life of 500,000 shots for effortless, predictable repeat ordering.
Clear, direct answers from our senior engineering team regarding sintering shrinkage compensation, tungsten carbide mold life, and density variance elimination in multi-level PM parts.
Sintering shrinkage is never uniform. JHMIM engineering team utilizes advanced DFM flow simulations to evaluate the compounding parameters, green density gradients, and atmospheric sintering temperatures. We intentionally engineer calculated oversized expansion profiles into the compaction die cavities, ensuring the final sintered components conform exactly to your 3D STEP file specifications without unexpected secondary machining.
While standard tool steels like D2 or SKD11 offer great toughness for punches, the continuous high-speed friction of metal powder streams causes rapid abrasive wear inside the die cavities. We use premium Tungsten Carbide (such as YG15 or YG20, 88-91HRA for die liners. This material brings unmatched hardness and anti-galling properties, extending the mold’s dimensional consistency up to 5 times longer than traditional steel dies.
For components with complex vertical geometries (like multi-step pulleys or synchronous hubs), single-axis compression leads to severe low-density zones. We design multi-platen tool systems that interface with our 1,000-ton automatic presses, allowing independent control of multiple upper and lower punches. This guarantees that powder fill and compaction forces are distributed proportionally across all levels, achieving a uniform density of ≥ 6.8 – 7.2 g/cm across the whole part.
Our standard engineering lead time is 12 to 15 business days for complete design approval and tool fabrication. This includes 3D DFM analysis, precision wire-EDM profile cutting, vacuum heat treatment, and final microprocessor-controlled mirror polishing. Rapid prototyping tracks are available for urgent product rollouts.
Accelerate Your Production: Get a Risk-Free Tooling Quote Within 24 Hours
Stop betting your capital investment on standard tool shops that overlook powder flow and ejection risks. Partner with a manufacturing team that backs your project with 20+ years of internal DFM engineering, sub-micron manufacturing precision, and a 500,000-shot tooling asset guarantee.
Whether you need a heavy-duty compaction die for complex multi-level gears or an ultra-precise sizing tool to eliminate sintering distortion, we deliver net-shape engineering solutions that perform under extreme stress.
Ready to secure your supply chain? Upload your 3D CAD files (STEP/IGS) today. Our senior engineering team will provide a comprehensive DFM mold-ability analysis and a transparent, high-volume production quote within 24 business hours.