case studies

Case study: Interior LED Lamp Processes: Rapid plastic injection molding for volume production Materials: Mold Tool (Reflector Part): 718H / Mold Tool (Lens Part): S136 Reflector Part: -- LG CHEM LUPOY RF3208 solid white (Download the material sheet) Lens part: -- Bayer Makrolon PC2647 clear (Download the material sheet) Case study: Interior LED Lamp Processes: Rapid plastic injection molding for volume production Materials: Mold Tool (Reflector Part): 718H Mold Tool (Lens Part): S136 Reflector Part: -- LG CHEM LUPOY RF3208 solid white (Download the material sheet) Lens part: -- Bayer Makrolon PC2647 clear (Download the material sheet) Finish(Reflector Part): High polish Finish(LensPart):Cavity-Optical polish, core-VDI30 Lead Time:15 working days (10 working days for low volume molding tool) Mold Life: 100K+Units Requirement:tooling+molding+ inspection+ assembly+ packing Step One： Product Presentation The interior LED lamp is primarily made of plastic and aluminium. The lamp serves the purpose of illumination in car compartments and is produced by the combination of injection moulding and die casting processes. For the purpose of this project, we aim to introduce two representative components – The Reflector and the Lens. After being approached by the client who had inquired about the tooling of his products. The client inquired about the tooling of up to 1000 pieces. After following standard procedures, our sales team replied the client with a quote within 12 hours. For the rapid tooling process of simple structures, First Part China Limited is able to reduce the time of production from the standard 12 hours to 6 hours. This saves our customers waiting time and allows them to spend more time for accessing and evaluating the produced design. In the absence of complaints and after reaching a unison conclusion with the clients, we evaluated the options and selected the materials “LG brans solid white PC”, “Bayer Makrolon clear PC” due to their excellent transparency properties which is required by LED lamps. We also picked those materials for their high temperature and wear resistance. At First Part China Limited, we design for purpose and as such, we selected both materials based on the client’s purpose of design and professional input from First Part’s CAD engineers. The next step in the process is to engage in DFM communication Step Two： DFM Design The DFM design is developed to show the client a feasible design scheme. In most cases, these DFM designs are available in 1 to 2 days. After a detailed review of the 3D models, we create a DFM design for the client. The Tooling design would also be based on the DFM design. Below are some pictures that illustrate the process: 3D model: DFM: (Reflector Part) DFM: (Lens) Tooling design: Step Three： Mold production and Injection testing Over the next couple of days, the mold production and T1 part injection is done. During the course of these processes, we inject and test some parts while evaluating the ...