DFM stands for Design for Manufacturing, it is a process/document discuss how the manufacturer going to make/manufacture/produce a product. Here discuss a DFM for a injection molding mold, which generally consisted of following elements: Plastic part design review (2D/3D) Collect and study the purpose of the plastic part (for appearance or functional of assembly, the… Continue reading
Author Archives → Andrew Chiang
E-4-Validation Phase
Validation is not a necessary activity in design and development stage, if the test performed in Engineering phase is enough to ensure the product is designed/manufactured according to requirement. The spirit of Validation is to ensure the product could provide good user experience. As the product which already pass all test, including dimensional (all dimensions… Continue reading
E-3-Engineering Phase
The process in the Engineering Phase shall be conducted with the approved drawings, BOM, Functional Description, and Assembly Guidance…etc. serving as input. This phase has 2 main objects, define the manufacturing process and lunch the component/sub-assembly/product mass production. The following engineering activities should be executed and the associated documentation approved in this phase. EvaluationTo plan… Continue reading
E-2-Design Phase
According to the input from Planning Phase, we had an initial idea and relevant information. This phase we are going to define the design of the final product, sub-assembly, and individual component. the method of assembling each component to sub-assembly and final product. According to the information above, the final product could be: According to… Continue reading
E-1-Planning Phase
Following activities and documents shall be carried out in this phase. Collect Input It is defined as the physical and performance requirement of a product that are the foundation for the product design. Input shall be identified from several sources including, but not limited to: Information from similar products shall also be considered as a… Continue reading
E-0-Product Life Cycle
A good product/service generally is a solution to a certain problem. Usually there is only an idea from the very beginning. Such as: This category discusses the process we can perform to bring the idea to customer. I was really confused that how to start a project in daily basis during early of my career…. Continue reading
D-10-IMM Evaluation
The best order is a single part with crazy qty. requirement, manufacturer only need to do same thing every day and keep making money. To meet the order’s requirement, manufacturer needs to prepare a big land/plant full of same equipment and molds. It means all equipment have same model/specification/even manufacturing date, so does the molds…. Continue reading
D-9-Establish Molding Process
Molding process is a complicated cross interaction between raw material, mold, injection molding machine (IMM), and some related equipment. There are hundreds of settings in these systems. How/where do we start?? Here discuss the process to find the most suitable molding parameter setting to process the molds, it is suggested to perform this process to… Continue reading
D-7-Confirmation before Injection Molding Process
Molding process preparation includes 3 aspects: raw material, mold, equipment (such as injection molding machine (IMM), temperature controller, process monitoring machine…etc.), they shall work with each other properly in order to produce good parts. At least but not limited to following items must be checked to confirm if the preparation had been done properly, it… Continue reading
D-6-Molding Parameters
Here discuss molding parameter settings and output on the IMM which mostly considered during injection molding process. The molding parameters above are machine inputs. The following are the outputs from the machine, which are a result of the settings of the molding parameters as available on the molding machine screens.
D-5-Injection Molding Process
Injection molding process is basically a process that raw material being melted, being injected and molded as a part, the equipment set could produce from one to hundreds of parts each shot/cycle depending on mold design. Since the cycle time is relatively less and the quality is keep improving, more and more parts are made by plastic… Continue reading
D-4-Cavity Monitoring System
Plastic part with consistent quality and behavior can be produced with consistent/stable mold status, molding process, and raw material. During the injection molding process, the melt plastic will be injected into the mold with a series mechanical movement of injection molding machine (IMM). This leads to the mold inside environment changes accordingly, in which the… Continue reading