Neway Precision Works Ltd R&D Team

  Definition of Gas-Assisted Injection Molding Gas-assisted injection molding is a manufacturing process that uses inert gas to apply internal pressure inside a molten plastic part during the plastic injection molding process . This results in hollow, lightweight parts with thick walls and uniform thickness. Gas-assisted injection molding includes four basic steps: Molten plastic is injected into a mold cavity under high pressure, filling most but not all of the cavity. Once the plastic has partially solidified, an inert gas such as nitrogen is injected into the still-molten core of the part. This gas gets injected through the injection nozzle into the mold's hollow section called the gas channel. The gas applies outward pressure from inside the part, pushing the plastic against the walls of the mold cavity. It helps pack out the part and eliminate sink marks. The part continues cooling, with the gas pressure holding the plastic against the mold walls. The result is a robust, light...

 Plastic injection molding produces plastic parts by injecting molten plastic into a mold cavity. In two-shot molding, two different plastics are injected in sequence into one mold to create a two-material or two-color part. Multi-shot molding injects three or more shots of plastic into a single mold to create parts with multiple materials or colors. Overmolding involves injecting one material onto a pre-molded part already placed in the mold, combining two materials into one part. Multi-shot and overmolding combine different properties like flexibility, strength, and texture into one part. They increase design freedom but require more complex tooling than standard injection molding. Injection Molding Injection molding is a typical manufacturing process for producing plastic parts in high volumes. The primary plastic injection molding process involves melting plastic material into liquid and injecting it under high pressure into a mold cavity. The plastic cools and solidifies insi...

  Introduction to Ceramic Injection Molding CIM is a sophisticated manufacturing process used across various industries to produce high-precision ceramic parts. Like metal injection molding (MIM) the CIM process combines the capabilities of plastic injection molding and material science, enabling the creation of complex shapes that would be too difficult, expensive, or even impossible to produce using conventional methods. Ceramic Injection Molding Steps The CIM process involves several stages, each contributing to creating a high-quality ceramic part. Injection Molding Mold Creating The ceramic injection molding molds are actually high pressure injection molding molds like a plastic injection molding mold . It is designed and built in-house using CAD/CAM technology, ensuring the ceramic part can be manufactured according to the design drawings. The initial cost of CIM is relatively high due to the presence of injection molds. However, the CIM process is undoubted...

  Definition of Metal Injection Molding (MIM) Metal injection molding (MIM ) is an advanced powder metal injection molding (PMIM) manufacturing process that produces small, complex metal parts to tight tolerances and high densities. In MIM, metal powders are combined with polymer binders to create a feedstock material that can be injected into molds using plastic injection molding techniques. After molding, the binders are removed through debinding of MIM parts, and the metallic component is sintered at high temperatures to fuse the particles into a solid metal part. Importance of metal selection in MIM Metal selection is crucial in metal injection molding  as it fundamentally impacts feedstock properties, molding behavior, debinding, sintering characteristics, final part properties, and secondary operations. The specific alloy composition and powder morphology drive important factors like densification, shrinkage, ...

  Sintered Gears Bushings Overview Sintered self-lubricating gears, bushings, and bearings refer to powder metallurgy components with porosity and impregnated lubricants to provide continuous lubrication during operation without needing external lubricant replenishment. Compared with solid gears, bushings, and bearings, they are lightweight, porous, self-lubricating, and high-strength. We usually use two kinds of powder metal manufacturing methods to produce sintered gears and self-lubricating bushings, namely metal injection molding and powder compression molding , which belong to the powder metallurgy process. Solid metal gear, bushings manufacturing methods The primary manufacturing processes for solid metal gears and bushings each offer distinct advantages. Gear machining allows high-precision profiling and finishing, but casting provides near-net shape capability. Forging improves strength through grain flow shaping. Bushing machining enables tight tolerances and surface fin...

 In today's world of technological marvels, 3D printing has emerged as a groundbreaking innovation that has revolutionized how we create and manufacture objects. From rapid prototyping to complex medical implants, this cutting-edge technology has captured the imagination of engineers, designers, and artists alike. But what exactly is 3D printing, and how does it work? This article will explore the intricacies of the 3D printing process, delve into its various classifications, discuss the materials used, and uncover its vast applications. Understanding the 3D printing Process At its core, 3D printing is an additive manufacturing technique that constructs three-dimensional objects layer by layer based on a digital design. Unlike traditional subtractive manufacturing methods, which involve cutting or carving away material from a solid block, 3D printing builds objects from scratch. The process involves several key steps that bring a digital concept into tangible reality. Firstly, a di...