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718 Mold Steel Automotive Interior Mold
This 718 mold steel automotive interior mold is a high-life, high-stability dedicated injection mold developed for automotive interior parts. Made of 718H pre-hardened mirror mold steel, processed via large-scale CNC machining, EDM and precision assembly, it is suitable for the production of complex-structure interior parts such as door panels, instrument panels and center consoles. It can achieve various surface effects including texture, matte and high-gloss, meeting the strict quality standards of the automotive industry.
- Machining Process: Large-scale CNC machining, wire-cut EDM, EDM, precision assembly
- Material: 718H Pre-hardened Mirror Mold Steel (Standard HRC32-36)
- Accuracy: ±0.01 mm
- Surface Finish: Etched
- Application Scope: Automotive door panels, instrument panels, center consoles and other interior parts
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We specialize in custom manufacturing of large-scale injection molds for the automotive industry, equipped with gantry machining centers, wire-cut EDM, mirror spark machines and other full set of large-scale precision processing equipment, with over ten years of experience in automotive interior mold development. The key dimensional tolerance of the mold is stably controlled within ±0.01 mm, with a monthly delivery capacity of 10+ large automotive interior molds. We provide one-stop services from product structure optimization, mold design, manufacturing to trial molding and delivery, serving mainstream OEMs and auto parts suppliers.
Technological Process
- Product & Mold Design: Optimize parting lines, slides and cooling solutions based on automotive interior part structure, complete 3D mold design and 2D machining drawings.
- Steel Cutting & Rough Machining: Cut 718H mold steel to size and perform rough milling to remove most of the excess material.
- Semi-finishing & Heat Treatment: Semi-finish the mold components and perform pre-hardening treatment to stabilize 718H hardness at HRC32-36, improving wear resistance and polishing performance.
- Precision Machining: Large-scale CNC finish the cavity, slides and guide pin holes; wire-cut EDM process inserts and holes; EDM finish sharp corners and ribs.
- Surface Treatment & Texturing: Conduct texture, etched or high-gloss treatment according to OEM standards to restore the texture and appearance of interior parts.
- Mold Assembly & Trial Molding: Complete mold assembly, conduct multiple trial moldings and adjustments to ensure product dimensions, appearance and assembly compatibility meet requirements before delivery.
Core Advantages & Applications
Common Applications
- Door Panel Parts: Front and rear door panels, armrest panels, storage box molds
- Instrument Panel Parts: Instrument panel bodies, center consoles, air outlet molds
- Center Console Parts: Center console panels, cup holders, shift panel molds
- Other Interior Parts: Pillar trims, roof accessories, luggage compartment trim molds
Specification Table
| Parameter | Details |
| Material | 718H Pre-hardened Mirror Mold Steel (Standard HRC32-36) |
| Machining Process | Large-scale CNC machining, wire-cut EDM, EDM, texture/etched finish treatment, precision assembly |
| Dimensional Accuracy | ±0.01 mm |
| Surface Finish | Texture / Etched / Matte / High-gloss (Custom per OEM standards) |
| Mold Life | Over 800,000 cycles (customizable as required) |
| Applicable Injection Machine Tonnage | Custom per mold size (Typical 150T-800T) |
| Cooling System | Custom water channel design for uniform cooling and shorter cycle time |
| Quality Control | CMM dimensional inspection, trial molding verification, full product dimension report delivery |
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