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-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-3-Clamping Unit
Generally clamping unit could be divided into: Three plate clamping unit is consisted of 3 major plates which are machine plate for mold fixed side, plate for mold moving side, Plate for providing Movement to drive plate for mold moving side. See illustration of Three plate clamping unit in Pic.-1. A later three plate clamping… Continue reading
D-2-Injection Unit
The injection unit consisted of following major elements: Barrel It is a cylinder where raw material changes from pellet to molten stage. To well control the temperature inside the barrel is really important during the process. This is determined by the machine manufacturer but following principle shall be followed: the temperature control should provide at… Continue reading
D-1-Injection Molding Machine Concept
Injection molding involves forcing melt plastic into molds at high pressure. The plastic then forms to the shape of the mold as it cools and solidifies. Usually a quick-cycle process, injection molding can produce large quantities of parts, accommodate a wide variety of part sizes. Here discuss the machine (aka IMM) concept to inject melt… Continue reading
C-18-Mass Produced Mold
Sometimes, the forecast demand from customer is so huge. It requires many production lines to cover the required amount. In order to prevent the production variation from different manufacturing equipment including Injection Molding Machine (IMM) and molds…etc. Apart from picking IMM with similar performance (evaluated and categorized by the activity discussed in D-10), we could also… Continue reading
C-17-Mold Completion Check
Here discuss at least but not limited items shall be checked by QC of the mold maker when mold finish manufacturing.