Explore our validated automotive, hydraulic, and sensor stamping and CNC components built under strict PPAP and GD&T controls.
Transitioning beyond traditional body-in-white (BIW) to structural EV battery enclosures, autonomous sensor chassis, and ultra-high-strength steel (AHSS) stamping configurations.
Electric mobility platforms demand complex lightweight aluminum alloy stamping with integrated thermal dissipation paths and hermetic sealing capability.
Addressing structural safety targets with Advanced High Strength Steels (AHSS) and Dual Phase (DP) steel sheet metal forming up to 1200 MPa tensile strength.
Micro-precision sensory stamping requiring extreme electromagnetic interference (EMI/RFI) attenuation and microscopic dimensional repeatability.
Combining Shenzhen's high-density industrial supply chain with smart sensorized press beds, digital die tracing, and algorithmic tooling lead times.
By keeping high-speed wire EDM, multi-axis tooling machining centers, and mold build internal to our facility, engineering change orders (ECOs) are incorporated within hours rather than weeks.
Our press lines are outfitted with acoustic emission sensors and dynamic strain gauges that continuously supervise die closure velocities, preventing intermittent micro-cracks and shear variations.
Located in Shenzhen, Sunmy utilizes the world's most concentrated precision tooling, surface treatment, and raw material cluster, mitigating global logistics choke points and raw sheet material volatility.
As vehicle electrification and lightweighting push traditional sheet metal to physical boundaries, our engineering process incorporates high-strain metallurgy and multi-stage simulations.
| Stamping Focus | Current Production Standard | Next-Generation (2026-2028 Horizon) | Critical Engineering Impact |
|---|---|---|---|
| Materials Processed | SPCC, SECC, SUS304/316, AL5052/6061, Brass | Ultra-High-Strength DP1180, Martensitic 1500, AL7075-T6, Magnesium | Weight reduction by up to 34% with enhanced structural side-impact intrusion resistance. |
| Tolerance Envelope | Standard: ±0.05 mm; Precision: ±0.01 mm | Micro-features to ±0.005 mm; In-line Laser Profile scanning | Zero-play assembly for LiDAR lens retention, sensory chassis, and motor stator stacks. |
| Simulation & Tooling | Static 3D CAD + basic AutoForm sheet thinning check | Dynamic Thermo-Mechanical Coupled FEA + AI Springback Predictive Dies | Elimination of secondary physical trials; first-shot tooling accuracy elevated past 94%. |
| Joinery & In-Die Ops | Traditional progressive blank, notch, bend + manual assembly | In-Die Tapping, In-Die Clinching, Robotic High-Speed Laser Brazing | Consolidation of multi-component BOMs into monolithic stamped sub-assemblies. |
Direct NDA execution, comprehensive DFM feasibility check, and complete PPAP Level 3 readiness supplied within 24 hours.
Addressing the specific operational and regulatory expectations of European, North American, and Asian automotive procurement groups.
Full production part approval processes ensuring complete transparency before serial authorization.
Guaranteed chemical composition and tensile mechanical performance per heat number.
Ensuring dimensional consistency across production runs exceeding millions of cycles without drift.
Addressing common technical, operational, and commercial questions from OEM procurement professionals.
We deploy advanced nonlinear FEA software to model kinematic hardening, elasticity recovery, and residual stress distributions before tool design. Dies are manufactured with tailored counter-crowning geometry, variable blank holder force control, and multi-stage restriking stations to permanently secure GD&T profiles within nominal print limits.
Tool lifespans depend on material grades: tool sets for mild steel and brass generally exceed 1,000,000 cycles, while high-tensile steels typically require carbide inserts rated for 500,000 cycles between refurbishments. Sunmy retains full tool ownership maintenance records, providing free tooling maintenance and sharpening over the lifetime of the program.
Yes. Many clients start with CNC milled prototypes to validate geometric envelope and kinematic fits. Our engineering group then performs deep DFM analysis to re-engineer solid bodies into multi-part stamped/bent weldments or single-piece deep-drawn stampings, typically lowering per-unit component costs by 55% to 80% while retaining structural integrity.
For stage dies and rapid single-operation tooling, first article samples are typically ready in 2 to 3 weeks. Complex multi-station progressive dies require 4 to 6 weeks, which includes tool manufacturing, trial stamping (T0-T1), full CMM dimensional mapping, and comprehensive FAI reports.
We manage qualified secondary finishing through closely audited, captive operations. Capabilities include automotive cathodic E-coating, zinc-nickel plating with trivalent passivation, powder coating, anodizing, and Dacromet treatment rated to pass 720 to 1,500 hours of neutral salt spray testing under ISO 9227 / ASTM B117 specifications.
We enforce rigorous IP protection frameworks. We execute bilingual Non-Disclosure Agreements (NDAs) before acquiring STEP/IGES files. Customer CAD geometries are held within restricted, air-gapped engineering networks without intermediaries, directly shielding Tier-1 designs from public disclosure.
Combining precision sheet metal, Swiss turned inserts, and 5-axis CNC sub-assemblies for automotive, aerospace, and medical engineering.