High-Speed, Non-Contact Precision Marking on Complex Geometries
At Ningbo Jiehuang Chiyang Electronic Tech Co., Ltd. (JHPIM), laser marking is seamlessly integrated into our end-to-end PM and MIM manufacturing pipeline. Our multi-axis computerized laser systems guarantee deep optical readability, zero mechanical stress, and preserved corrosion resistance across challenging metal and ceramic alloys.
Fiber Laser Marking (1064nm)
The gold standard for high-density sintered structural steels, stainless steel MIM components, and brass bushings. Fiber laser annealing alters optical reflectivity beneath the surface without vaporizing base metal, preventing micro-crack propagation.
- Excellent for 316L, 17-4PH, Fe-Cu-C, and Alloy Steels
- High-speed deep engraving and surface dark annealing
- Minimal heat-affected zone (HAZ < 5μm)
UV "Cold" Laser (355nm)
Engineered for high-precision surgical instruments, biocompatible medical MIM components, and delicate ceramic injection molding (CIM) parts. Uses photochemical degradation to achieve ultra-fine contrasts without thermal distortion.
- Zero thermal degradation or surface micro-burrs
- Retains FDA passivation & anti-corrosion barrier
- Spot diameters down to 10 microns
CO2 Laser & Specialized Etching
Optimized for specialty coated powder metallurgy parts, organic-impregnated oil bushings, industrial polymer-matrix hybrid components, and rapid packaging serialization directly off the sintering and oil-impregnation lines.
- Ideal for coated, anodized, or painted surfaces
- Fast throughput for batch barcode identification
- Cost-effective solution for secondary packaging
Precision Laser Marking Capabilities for PM & MIM Assemblies
Marking sintered powder metallurgy and metal injection molded components requires deep metallurgy knowledge. JHPIM adjusts laser wavelength, pulse frequency, and beam overlap to guarantee readable serialization without compromising structural integrity or micro-porosity.
| Marking Feature | Supported Formats & Standard | Applicable Substrates | JHPIM Manufacturing Advantage |
|---|---|---|---|
| 2D DataMatrix & QR Codes | ISO/IEC 16022, GS1 compliant (Down to 0.8mm x 0.8mm size) | Stainless Steel (316L, 17-4PH, 420, 440C), Sintered Iron, Tungsten Heavy Alloys | High Scanning Contrast Optimized for automatic automated optical inspection (AOI) lines. |
| Direct Part Serialization & UDI | FDA Unique Device Identifier (UDI), Military Standards, Alpha-Numeric | Titanium MIM, Medical Stainless Steel, Tool Steels (M2, SKD11) | Passivation-Safe Dark laser annealing leaves protective passive chromium oxide layer 100% intact. |
| Micro Logos & High-Definition Graphics | Vector files (DXF, AI, PLT), Micro-characters down to 0.2mm height | Powder Metal Gears, Sintered Camshaft Lobes, Smart Lock Tongues | Zero Distortion Non-contact processing preserves high-precision tooth profiles and micro-splines. |
| Radial & Curved Surface Marking | Rotary dynamic marking (C-axis motorized integration) | Self-lubricating oil-impregnated bushings, spherical bearings, pump rotors | 360° Seamless Coverage Constant focal length tracking across cylindrical and curved geometries. |
| Deep Laser Engraving | Engraving depths from 0.05mm to 0.8mm for high-wear environments | Impact blocks, industrial valve seats, automotive transmission gears | Abrasion Resistant Permanent identification survives extreme thermal cycles, oil exposure, and shot peening. |
Integrated Laser Marking Protocol at JHPIM
DFM & Surface Analysis
We review your 3D CAD/drawing annotations, surface roughness (Ra), and material composition to select the right laser wavelength and focal optic.
Precision Fixturing
Custom multi-cavity pneumatic or rotary indexing fixtures ensure reliable part positioning (±0.01mm) for rapid high-volume batch processing.
Parameter-Calibrated Lasing
Pulse width, frequency, and marking speed are monitored in real time to avoid micro-melting or damaging localized heat treatments.
Optical Verification & Packaging
100% automated 2D barcode grading (ISO/IEC 15415) and optical measurement ensure perfect legibility before rust-preventative packaging.
Meeting Stringent Global Standards: Automotive & Medical
In mission-critical sectors, component failure is not an option. JHPIM provides indelible, permanent laser marking that survives extreme mechanical wear, chemical washing, ultrasonic cleaning, and high-temperature autoclaving.
Medical UDI Compliance (FDA & MDR)
Our cold UV laser and fiber annealing processes deliver permanent marks compliant with FDA 21 CFR Part 830 and EU MDR 2017/745, resisting repeated sterilization without corrosion.
Automotive IATF 16949 Part Serialization
Direct Part Marking (DPM) allows Tier 1 and OEM automotive manufacturers to trace raw material batch, sintering furnace load, and CNC inspection data across each component's lifecycle.
Anti-Counterfeiting & Premium Branding
High-definition micro-logos, sharp geometric font rendering, and encrypted matrix codes protect your intellectual property and elevate your product's market presentation.
Why Laser Marking Excels Over Conventional Stamping & Acid Etching
- ✔ Zero Mechanical Stress: Eliminates risk of micro-fracturing sintered tooth roots, delicate MIM thin walls, and ceramic parts.
- ✔ Chemical & Acid Free: Eco-friendly clean technology with zero corrosive chemical residues inside sintered micro-pores.
- ✔ Dynamic Data Serialization: Sequential serial numbers and timestamped DataMatrix codes update on the fly without mechanical tooling changes.
- ✔ Total Geometric Freedom: Marks recessed pockets, internal step bores, and compound curvilinear faces inaccessible to pin stamping.
Versatile Industrial Applications
From micro MIM surgical forceps to heavy-duty automotive sintered transmission gears, our laser marking lines adapt to high-mix low-volume prototyping and millions-of-units automated production runs.
Medical & Surgical
Micro MIM surgical scissors, endoscopic articulators, titanium dental implants, and orthopaedic fixators requiring autoclave-resistant UDI DataMatrix marking.
Automotive Powertrain
Engine VVT sprockets, sintered transmission synchronizer hubs, oil pump gerotors, and seat-recliner gears marked with trace codes for batch management.
Power Tools & Machinery
High-torque planetary gearboxes, impact hammer blocks, ratchet mechanisms, and oil-retaining porous bronze bushings marked with part numbers and torque limits.
Smart Locks & Electronics
High-strength stainless steel smart lock deadbolts, clutch hubs, consumer electronics hinges, and drone micro-fittings etched with fine logos and anti-tamper codes.
About Ningbo Jiehuang Chiyang Electronic Tech Co., Ltd. (JHPIM)
Headquartered in China's industrial manufacturing core, JHPIM is a premier B2B OEM/ODM manufacturer specializing in high-precision Powder Metallurgy (PM) and Metal Injection Molding (MIM) parts. We offer an integrated pathway from custom powder formulation and tooling design to sintering and advanced post-processing.
Sintered PM Transmission Parts
Full-scale manufacturing of high-density spur gears, helical gears, planetary gear sets, bevel gears, and eccentric cams with custom tooth profiles and tight dimensional tolerances.
MIM & CIM Precision Micro-Parts
Complex 3D geometries, ultra-thin walls, and complex internal contours molded in stainless steels (316L, 17-4PH), titanium, ceramic, and soft-magnetic alloys with near-net shape accuracy.
Self-Lubricating Bushings & Bearings
Iron-based and copper-based porous sintered oil-retaining bushings, flanged sleeves, and spherical bearings delivering maintenance-free, ultra-low-noise performance.
Why Global Engineering Teams Partner with JHPIM
Combining near-net shape forming with vertically integrated post-processing provides unmatched commercial and technical advantages.
20% - 50% Cost Savings
Near-Net Shape technology achieves >95% material utilization, drastically lowering cycle times compared to multi-axis CNC milling.
In-House DFM Support
Experienced tool engineers analyze draft angles, wall thicknesses, and shrinkage dynamics to de-risk mold production early.
Comprehensive Post-Processing
From precision laser marking and CNC turning to vacuum oil impregnation, case hardening, and PVD coating under one roof.
Global Export Reliability
Serving Tier 1 automotive suppliers, medical device developers, and industrial distributors across North America, Europe, and Asia.
Ready to Elevate Your Component Traceability?
Submit your 3D CAD models (STP / STEP / IGS / DWG) alongside your laser marking requirements. Our senior application engineers will deliver a comprehensive DFM assessment, tooling evaluation, and competitive B2B quotation within 24 hours.