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Automotive Grille Mold and Car grille injection molding

Automotive Parts Molding

Automotive Grille Mold and Car grille injection molding

The car grille is a component installed on the front of the vehicle to protect the radiator and engine inside the vehicle, as well as to provide aesthetics and air diversion. It is usually made of plastic or metal materials and comes in different shapes and designs to suit the needs of different models and brands.

The difficulties in making injection molds for automobile grilles and the injection molding process are as follows


  • In general, both the injection mold and the injection molding process for manufacturing automobile grilles face some difficulties, such as complex shapes and structures, material selection and processing, etc. However, through reasonable mold design and manufacturing, as well as precise control of injection molding parameters and cooling systems, these difficulties can be overcome and high-quality automotive grille injection molding can be achieved....Please send us a message(Email: ) at any time and our team will reply to you within 12 hours.

  • Mold Description

    Product Materials:


    Mold Material:


    Number of Cavities:


    Glue Feeding Method:

    Hot runner

    Cooling Method:

    Oil cooling

    Molding Cycle


    injection processgsi
  • The car grille is an important part of the car’s exterior and is usually made of plastic material. The design and manufacturing of plastic molds are crucial to producing high-quality automotive grilles. Mold flow analysis and mold design optimization are key factors to ensure product quality and production efficiency in the mold manufacturing process. The following will introduce in detail the mold flow analysis and mold design optimization of automobile grille plastic molds.

    Mold flow analysis of automobile grille plastic mold
    1. Filling simulation
    Automobile grilles usually have complex structures and curved surfaces, so filling simulation needs to consider complex situations such as multiple filling ports and multiple branches. By simulating the filling process of melt in the mold cavity, parameters such as filling time, filling pressure, and filling speed can be evaluated to predict possible defects such as poor filling, bubbles, and short injections.

    2. Cooling simulation
    Cooling simulation of automobile grilles needs to take into account parameters such as cooling time, temperature distribution and shrinkage. A properly designed cooling system ensures uniform cooling of the entire grille and reduces quality problems caused by uneven deformation and shrinkage.

    3. Thermal stress analysis
    Since automobile grilles are usually large, thin-walled plastic parts, the melt will cool quickly after injection molding, which can easily produce thermal stress, leading to deformation and cracks. Therefore, it is necessary to analyze thermal stress and design reasonable structures and cooling systems to reduce the impact of thermal stress on product quality.

    Automobile grille plastic mold design optimization
    1. Structural design
    In mold design, the complex structure and curved surface design of automobile grilles need to be considered, especially for molds with complex structures such as multi-cavity and multi-moving molds. Reasonable design requirements such as exhaust, cooling and ejection are the key to mold design.

    2. Material selection
    Choose a suitable mold material, usually tool steel with high hardness, strength and wear resistance. At the same time, the materials used to make the cooling system also need to be selected, usually materials with good thermal conductivity properties.

    3. Mold processing
    Mold processing includes CNC machining, electric discharge machining, wire cutting processing, etc., and performs precision processing of mold parts. These processes ensure mold accuracy and consistency.

    4. Heat treatment
    Heat treatment of mold parts usually includes quenching, tempering and other processes to improve the hardness and wear resistance of the material.

    The mold flow analysis and mold design optimization of automobile grille plastic molds need to be combined with the actual situation, using advanced mold flow analysis software and mold design tools, combined with rich experience and professional knowledge, to conduct in-depth research and analysis. Through mold flow analysis and mold design optimization, the production efficiency and product quality of automobile grille molds can be ensured, and the automotive industry’s demand for high-quality parts can be met.
  • mold workshops 771v6
  • The difficulties in manufacturing and processing automobile grille plastic molds mainly include the following aspects:

    Complex structure processing: Automobile grilles usually have complex structures and curved surface designs. Mold processing requires precise processing of complex curved surfaces and details, which requires high processing equipment and technology.

    High precision requirements: As an important part of the exterior of the car, automobile grilles have high requirements for dimensional accuracy and surface quality. Mold processing needs to ensure the dimensional accuracy and surface finish of the parts.

    Cooling system processing: Automobile grille plastic molds require a properly designed cooling system to ensure that the plastic material can be cooled quickly during injection molding, which poses challenges to mold processing and processing accuracy.

    Material selection: Mold materials need to have sufficient hardness and wear resistance to cope with long-term high-intensity work, which poses challenges to the selection and processing difficulty of mold materials.

    In terms of plastic material selection, engineering plastics with good mechanical properties, wear resistance and weather resistance are usually selected as the material for automobile grilles. Common plastic materials include:

    Polypropylene (PP): It has good molding properties and weather resistance and is often used in the manufacture of automobile grilles.

    Polystyrene (PS): It has good rigidity and toughness and is suitable for the manufacture of some automobile grilles.

    Polycarbonate (PC): It has excellent impact resistance and transparency and is often used in the manufacture of high-end automobile grilles.

    During the mold manufacturing process, it is necessary to select appropriate mold materials based on specific plastic material characteristics and product requirements, and use advanced processing equipment and techniques to ensure the processing accuracy and surface quality of the mold. At the same time, for automobile grille molds with complex structures, advanced processing techniques and technologies need to be combined to ensure the processing quality and performance of the molds.
  • It is very important to optimize the mass production of automobile grille plastic mold injection molding and improve production efficiency, as well as issues such as tooling and fixture configuration, process quality control, packaging and transportation. Here are some possible optimization measures and controls:
    Production optimization and effect improvement
    Automated production line: Introduce automated production lines and robot operations to improve production efficiency, reduce manual intervention, and reduce production costs.
    Process optimization: Through mold flow analysis and mold design optimization, the injection molding process parameters are improved to improve product molding quality and production efficiency.
    Energy conservation and emission reduction: Use energy-saving and environmentally friendly production equipment and processes to reduce energy consumption and environmental pollution.
    Quality management system: Establish a complete quality management system, including the establishment of quality control points, the formulation of quality inspection standards, the traceability of quality records, etc., to ensure stable product quality.
    Tooling and fixture configuration
    Customized fixture design: Design customized fixtures based on product characteristics and production needs to improve production efficiency and product consistency.
    Fixture calibration: Accurately calibrate and debug the tooling fixture to ensure the accuracy and stability of the fixture.
    Process quality control
    Online detection: Introduce automated online detection equipment to monitor product size, appearance, etc. in real time, and detect and handle abnormalities in a timely manner.
    Process parameter control: Strictly control the injection molding process parameters to ensure stable product molding quality.
    Packaging and Shipping
    Customized packaging design: Design a reasonable packaging plan based on product characteristics and transportation needs to protect the product from damage.
    Logistics management: Establish an efficient logistics management system to ensure that products can be delivered to customers in a timely and safe manner.
    Through the above optimization and control measures, the efficiency and quality of mass production of automobile grille plastic mold injection molding can be improved, ensuring that products can meet market demand and improving the competitiveness of enterprises.
  • The mold manufacturing process and product material selection


    How long does it take for each stage to work after the mold contract is signed?

    1. After signing the contract, there will be 3-4 days to check with the customer first, and the two parties will communicate some specific requirements of the mold;

    2. The mold design time is about 5-7 days, and material procurement will be carried out in the same period;

    3. The mold production time is about 20-35 days, which varies according to the size and complexity of the mold;

    4. The mold trial and inspection time is about 2-3 days;

    5. After the T1 mold test, the mold perform is about 3-5 days, and then the T2 mold test is performed again. Generally, there are 3 mold tests to basically meet the requirements.

    How can I get the quotation?

    We will prepair the quotation in 24 hours if getting detailed information during working days.In order to quote for you earlier, please provide us the following information together with your inquiry.

    1) 3D date and 2D Drawings

    2) Material requirement

    3) Surface requirment

    4) Quantity (per order/per month/annual)

    5) Any special demands or requirements, such as packing, labels, delivery, etc.

    How do you ensure the quality of the mold?

    1. We have a high level "Mold Inspection Standard", a complete set of strict mold inspection system and an excellent inspection team.

    2. We can provide inspection reports and purchase certificates for all materials of the mold.

    Does your company provide product design services?

    1. Absolutely. We have support many clients from Europe and North America develement their new products.

    2. You only need to provide requirements, your requirements can be a picture or a few sketches, our engineers can connect with you.

    3. We will sign the "Confidentiality Agreement for Entrusted Product Design" and "Intellectual Property Agreement" with you.

    How is your after-sales service and local support maintenance?

    1. We have after-sales service points or mold cooperative manufacturers in Europe, North America and South America.

    2. We will participate in international key exhibitions every year. Euromold, Fakuma, Formnext, NPE are the important exhibitions we often attend. Customers can meet us at the exhibition site. After the exhibition, we will visit local customers.

    3. We have a professional after-sales service team, which will visit customers at least once a year and make some maintenance work.