ZEEKR Automotive armrest console injection molding
ZEEKR Automotive armrest console injection molding
How Ansix Tech Drives Down Costs for ZEEKR's Premium Armrest Console
In the high-stakes world of automotive manufacturing, where every component must meet uncompromising standards, the humble armrest console has become a battleground for innovation and efficiency.
In the competitive landscape of electric vehicle manufacturing, companies like ZEEKR are under constant pressure to balance premium quality with aggressive cost control. For a critical interior component like the armrest console—a piece touched and used by drivers daily—achieving this balance is a complex engineering challenge. Enter Ansix Tech, a specialist in high-precision injection molding, whose partnership with ZEEKR has transformed the production of this key component. Through a holistic approach that integrates material science, intelligent Mold Design, and process optimization, Ansix has delivered a component that exceeds performance expectations while significantly reducing production costs. This case study reveals how strategic engineering partnership and technological mastery are reshaping value creation in the automotive supply chain.
- A Partnership Forged in Precision: Ansix Tech and ZEEKR Automotive
The collaboration between Ansix Tech and ZEEKR Automotive represents a meeting of minds focused on innovation through engineering. ZEEKR, as a forward-thinking electric vehicle brand under the Geely umbrella, demanded an armrest console that was not merely functional but an integral part of the vehicle's premium user experience. The component needed to offer a soft-touch, aesthetically flawless surface, robust structural integrity, and seamless integration with other interior systems.
Ansix Tech, with its deep expertise in complex injection molding solutions, was tasked with turning this vision into a manufacturable, cost-effective reality. The project scope encompassed the entire product lifecycle, from initial design for manufacturability (DFM) consultations through to high-volume production and rapid delivery protocols. Ansix's mandate was clear: deliver a superior part without the premium price tag typically associated with such advanced components. This required moving beyond conventional molding approaches to implement an integrated strategy where material selection, mold engineering, and production process were optimized in concert to eliminate waste and maximize efficiency at every stage.
- Blueprint for Success: The Design and Prototyping Phase
The foundation for a successful injection molding project is laid long before steel is cut for the mold. Ansix Tech initiated the ZEEKR armrest console project with a rigorous design input and feasibility analysis. Engineers meticulously examined ZEEKR's product drawings and technical requirements, identifying potential issues related to dimensional clarity, material performance, and inherent成型工艺 (molding process) problems . This early-stage scrutiny is critical for preventing costly revisions during later phases.
2.1 Advanced Mold Flow Analysis (DFM)
A cornerstone of Ansix's approach is the use of sophisticated Mold Flow Analysis and simulation software. Tools like Creo allow engineers to visualize critical results such as "Melt Front Time," "Air Traps," and "Weld Lines" before any physical prototype is created . For the armrest console, which features complex geometries and varying wall thicknesses, this simulation was indispensable. It predicted how the molten plastic would fill the mold cavity, identifying areas prone to defects like short shots (incomplete filling) or sink marks. By adjusting gate locations, runner systems, and cooling channel layouts in the virtual environment, Ansix optimized the design for a flawless first-shot success, dramatically reducing trial-and-error time and material waste.
2.2 Prototyping and Design Verification
Following virtual validation, Ansix moved to the prototyping and design verification stage. This phase, aligned with a formal Critical Design Review (CDR) process, involved creating detailed orthographic drawings, finalizing Bills of Materials, and building functional prototypes . Prototypes served a dual purpose: they allowed ZEEKR to verify the form, fit, and feel of the console, and they provided Ansix with a tangible part to validate their molding simulations. Any discrepancies between the simulated and actual outcomes were analyzed, and the mold design was refined accordingly. This iterative, data-driven process ensured that the final production mold was engineered for peak performance from its very first cycle.
- The Core of Innovation: Material Science and Mold Engineering
The selection of materials and the design of the mold itself are where Ansix's engineering expertise translates directly into client value and cost savings.
3.1 Strategic Material Selection
For the ZEEKR armrest, Ansix recommended a PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) blend for the substrate. This material was chosen for its excellent balance of impact strength, heat resistance, and dimensional stability, which is crucial for a large interior part subject to temperature fluctuations and mechanical stress . For the premium soft-touch surface, the project employed an In-Mold Coating (IMC) process. A two-component polyurethane coating is injected onto the substrate within a secondary cavity of the same mold, creating a perfectly bonded, seamless surface in a single automated cycle . This eliminates the need for a separate, labor-intensive, and potentially inconsistent post-molding painting or upholstery operation.
For structural components within the console assembly, materials like glass-fiber reinforced nylon 66 (e.g., LANXESS DURETHAN®) were evaluated for their high strength-to-weight ratio and resistance to creep under load, making them ideal for brackets and supports .
Table: Key Plastic Materials for Automotive Interior Applications
3.2 Mastering Mold Design and Manufacturing
Ansix's mold design for the ZEEKR console was an exercise in precision engineering focused on longevity, efficiency, and quality.
Mold Architecture: The team developed a sophisticated single-core, dual-cavity mold. One cavity forms the PC/ABS substrate, while a second is dedicated to the polyurethane coating. A sliding table mechanism automatically transfers the molded substrate into the coating cavity, enabling the complete two-stage process within one mold . This integrated design is more compact and efficient than using two separate molds.
Critical Systems Design: Every internal system was meticulously engineered. The cooling system was designed with conformal channels following the part's contour to ensure uniform heat extraction, minimizing cycle time and preventing warpage. The runner and gate system was balanced and sized based on mold flow analysis to ensure consistent filling of the large, thin-walled part. A robust ejection system was designed with multiple strategically placed pins and sleeves to demold the complex part without distortion or marks on the cosmetic surface.
Steel Selection and Processing: Core mold components were machined from pre-hardened or through-hardening tool steels (e.g., P20, H13) selected for their excellent polishability, wear resistance, and ability to withstand the high injection pressures and abrasive nature of engineering plastics. The machining workflow, from CNC milling to EDM (Electrical Discharge Machining) and precision grinding, was executed with micron-level tolerances to ensure perfect part geometry and surface finish.
- From Challenges to Cost Advantages: Production and Optimization
Translating a perfect mold into a flawless, cost-effective production process is where Ansix's operational excellence shines.
4.1 Overcoming Production Hurdles
The primary challenge in molding the large, thin-walled armrest console was preventing defects like short shots and weld lines. Short shots occur when the molten plastic solidifies before fully filling the cavity, often due to inadequate injection pressure, incorrect material temperature, or poor venting . Weld lines, which are visual and structural weaknesses formed where separate melt fronts meet, are problematic on aesthetic surfaces. Ansix countered these by:
Precisely calibrating the injection speed and pressure profiles to ensure rapid, balanced filling.
Optimizing venting in the mold to allow trapped air to escape, preventing "air traps" that can cause short shots or burns .
Strategic gate placement, as identified in DFM, to control flow fronts and position weld lines in non-critical, hidden areas.
4.2 The Optimization Engine: Efficiency and Cost Control
Ansix's relentless focus on optimization is the key driver of cost savings for clients like ZEEKR.
Cycle Time Reduction: By optimizing the cooling system and fine-tuning the injection and coating cure times, Ansix minimized the total cycle time. Every second saved per cycle translates directly into higher output and lower unit cost over a production run of hundreds of thousands of parts.
Material Efficiency: The In-Mold Coating (IMC) process itself is a major saver. It uses precisely the amount of coating needed, eliminating the overspray and waste associated with traditional spray painting. Furthermore, any sprues and runners from the substrate molding can be reground and reused in a controlled percentage, reducing virgin material consumption.
Intelligent Process Control: Embracing concepts from smart manufacturing, Ansix utilizes data-driven systems. Similar to the technology described in a patent for intelligent molding, process parameters can be monitored and automatically adjusted in real-time to maintain consistent quality, reducing the rate of rejected parts . This "right-first-time" philosophy minimizes waste of both material and production capacity.
- Delivering Assured Value: Quality, Packaging, and Industry Leadership
The final measure of success is the consistent delivery of perfect parts to the client's assembly line.
5.1 Uncompromising Quality Assurance
Ansix's quality control regimen is integrated throughout production. Automated Optical Inspection (AOI) systems can be employed to check critical dimensions and surface quality on every part or on a statistical sampling basis, providing immediate feedback . This data links back to the process, allowing for preventative adjustments. Every batch is subject to rigorous tests for dimensional accuracy, coating adhesion, color consistency, and mechanical strength, ensuring it meets ZEEKR's stringent specifications.
5.2 Streamlined Logistics
Understanding the just-in-time demands of automotive manufacturing, Ansix developed a customized packaging solution for the armrest consoles. Designed to protect the delicate coated surface from scratches and abrasion during transit, the packaging is also efficient, minimizing air freight volume and cost. Coupled with a flexible production schedule and reliable logistics partners, Ansix guarantees rapid and predictable delivery, ensuring ZEEKR's assembly line never experiences a shortage.
5.3 The Ansix Advantage: Reliability and Client Value
Ansix Tech's involvement in the ZEEKR project exemplifies its role as more than a parts supplier; it is a solutions partner. The company's deep industry experience allows it to foresee challenges and engineer them out upfront. The reliability it provides stems from this proactive, precision-engineering mindset. The value delivered to ZEEKR is quantifiable: a significant reduction in the total component cost achieved not by cutting corners, but by smart engineering—optimizing the material bill, slashing cycle times, eliminating secondary operations, and virtually eliminating scrap and rework. As demonstrated in other automotive applications, such strategic injection molding can lead to annual cost savings in the hundreds of thousands of dollars .
- Conclusion
The story of the ZEEKR armrest console is a testament to how advanced injection molding, when guided by expertise and a client-centric focus, becomes a powerful tool for value creation. Ansix Tech demonstrated that achieving premium quality in the automotive industry does not require a premium price tag. Through a synergistic approach that harmonizes material science, cutting-edge mold design, and intelligent process optimization, they delivered a superior product while driving down costs for their client. In an industry where efficiency and quality are paramount, partnerships like the one between Ansix and ZEEKR are setting a new standard, proving that the most sophisticated engineering is often that which delivers more for less.
Ansix Tech Co Ltd
If you have any plans related to ZEEKR Automotive armrest console injection molding, you can contact us at any time. We will turn your ideas into reality, let you realize your dreams, and obtain large orders from the market. Our contact information is info@ansixtech.com. Or contact our CTO, mail: stephen@ansixtech.com
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