The main methods for creating designs are solid modeling and surface modeling. Surface modeling was the earliest form of CAD. It is based on shaping surfaces by pulling, bending, twisting and stretching them until the required shape is created. The surfaces can be joined together to enclose a volume and so represent complete objects. Solid [...]
Two-color molding may also be referred to as 2-shot molding, bi-injection molding, co-injection molding, or multi-shot injection molding, which produces a part with two different colors and/or materials in a single operation. A two-color mold is able to combine two resins with different characteristics and colors into a single two-color product, which reduces the assembly [...]
Too often, mold builders tasked with delivering a complete, production-ready hot runner mold work in haste to design the mold and system. They look online and order what they believe is needed but realize too late that the various components won’t fit or work together as expected. If decisions are rushed or poorly informed, the [...]
Explanation of car lamp mold design Car headlight reflector (also known as mirror) is a part of car headlight illumination system that reflects function to avoid direct light. It is located inside lens and decorative frame, assembled with lens. Lens can be seen from outside of lamp through lens. Plastic parts are appearance parts, surface [...]
Actually we knew at the core issues associated with the common practice of conventional (±) tolerancing, including origins of measurement, repeatability of sizes and centers, orientation and angles and tolerance accumulation. Here, we will address these issues using the American Society of Mechanical Engineers Geometric Dimensioning and Tolerancing standard (ASME Y14.5 GD&T). Geometric Dimensioning and [...]
As a decision-maker in the manufacturing sector, you are familiar with (if not a devotee of) Lean, Six Sigma, Operational Excellence and similar continuous improvement approaches. One of the essential takeaways from continuous improvement technologies is that you need meaningful data to make decisions. For example, suppose you are like most mold manufacturers and rely [...]
Plastic injection molds cost anywhere between $100 for a 3D printed low-volume injection mold to $100,000+ for a complex multi-cavity steel mold for high-volume production, which generally represents the most significant fixed start-up cost in injection molding. However, as these costs get distributed among hundreds or thousands of parts, injection molding is an ideal process [...]
There is no doubt about it: More and more molds are being designed to include hot runner systems or hot sprue bushings. For those who build and run hot runner molds, it is not hard to see the reasons why. While expensive to build, hot runner molds can be more economical in the long run [...]
Every company is based on a foundation of knowledge. That knowledge is often taught from a senior mold builder to a junior mold builder. Sadly, that knowledge can be lost over time. Here we’ll focus on taking a real-world look at capturing and reusing company know-how. By using software automation, mold builders can instill company [...]
Ten years ago, there was a broadly accepted and well-defined route that a product developer might travel to take a product from concept to actual part. Generally, that path would include 2D and 3D drawings of the components and their assembly, which would go through various prototyping stages in low-cost, low-volume manufacturing methods such as [...]