Hetian's standard development cycle adapts dynamically to product complexity, with three core phases: design verification, prototype trial, and batch validation：

Phase 1: Design Stage (7-15 days)

  ◦ Technical Feasibility: Rapid CAD design and simulation using mature processes (e.g., aluminum forging, stamping).

  ◦ Prototyping: Initial samples via manual/RPT (Rapid Prototyping Tech, e.g., 3D printing) for functional validation.

 Phase 2: Validation Stage (15-30 days)

  ◦ Performance Testing: Fatigue tests and dimensional inspection in CNAS-accredited labs, ensuring compliance (e.g., German OEM standards).

  ◦ Process Optimization: Pilot runs to refine mold parameters and line layout, mitigating mass-production risks.

Phase 3: Batch Validation (10-15 days)

  ◦ Supply Chain Synergy: Concurrent raw material sourcing and supplier development (e.g., rubber damper partners) to compress lead times.

  ◦ Mass-Production Launch: PPAP (Production Part Approval Process) documentation ensures seamless transition post-customer approval.

  ◦ Critical Factors: Cycles may extend to 3 months for special materials (e.g., imported aluminum alloys) or complex structures (e.g., multi-link suspensions).

For OEM projects, Hetian employs a "Simultaneous Engineering + Phased Validation" model with the following workflow:

Phase 1: Simultaneous Engineering (3-6 months)

  ◦ Requirements Alignment: Jointly define technical specs with OEMs (e.g., load requirements for lightweight aluminum forgings), reducing sourcing decision time.

  ◦ Co-design: 65 engineers participate in OEM's Digital Mock-Up (DMU) reviews to optimize structural compatibility.

Phase 2: Road Testing & Validation (2-4 months)

 ◦ Prototype Iteration: A-Sample (functional) → B-Sample (performance) → C-Sample (process stability) validation.

 ◦ Environmental Testing: Simulate extreme conditions (-40°C~120°C/salt spray) to ensure 10-year/200,000-km lifespan compliance.

Phase 3: Production Ramp-up (3-6 months)

◦ Line Expansion (if required): Install automated forging lines and assembly equipment.

◦ SOP Launch: Pass OEM Run-at-Rate Audit for zero-defect delivery.

Case Study: Hetian delivered an aluminum front control arm for an EV OEM in merely 8 months, cutting mold commissioning time by 30% via simultaneous engineering.

Key Factors for Cycle Variance

Technology Maturity: Standard products leverage existing process libraries (e.g., rubber compound formulas, 27-year aftermarket database), while major projects require new material/process R&D (e.g., high-strength aluminum forgings).

Resource Commitment: Major projects need cross-functional teams (Procurement/Legal for supply chain compliance), versus standalone tech teams for standard products.

Validation Depth: OEM projects mandate full-vehicle durability tests (100,000-km road trials), exceeding lab sampling for standard parts.