Browse Topic: Molding
Bemis Manufacturing and BASF collaborated to develop a lighter-weight and lower-cost hydraulic tank for compact excavators that was recognized with a lightweighting award traditionally reserved for automotive innovations. Receiving an honorable mention in the Enabling Technology category of this year's Altair Enlighten Awards, the development team leveraged a combination of injection molding and vibration welding techniques to lower costs by approximately 20% and reduce mass by about 5% compared to the traditional roto-molding process. The solution also is more eco-efficient, delivering both environmental savings (reductions in lifecycle CO2 emissions) and reducing lifecycle costs
Aitiip is a leading Spanish research and development institute and serves companies in the aeronautics, automation, industrial, and packaging sectors. The institute possesses strong platforms for the characterization of materials and processes and is known as a powerful integrator of technologies, which is constantly on the lookout for the next transformative technology. A year ago, Aitiip implemented an NXE 400 industrial resin 3D printer platform from Nexa3D to explore integrations of additive manufacturing and injection molding. Nexa3D is the Ventura, California-based provider of high-speed industrial printing technologies whose portfolio continues to grow, reflected in its acquisition of Essentium, one of the world's most well-known providers of extrusion 3D printing, earlier this year. Liebherr is one of the world's largest providers of a variety of industrial goods, services and products. Aerospace and transportation systems is one of 13 different product segments supplied by the
The experimental investigation aims to improve natural composite materials aligned with feasible development principles. These composites can be exploited across several industries, including the automobile and biomedical sectors. This research employs date seed powder and neem gum powder as reinforcing agents, along with polyester resin as the base material. The fabrication route comprises compression moulding, causing the production of the natural composite material. This study focuses extensively on mechanical characteristics such as tensile strength, flexural strength, hardness, and impact resistance to undergo comprehensive testing. Furthermore, the chemical properties of the composites are examined using the FTIR test to gain understanding by integrating different proportions of date seed powder (5%, 10%, 15%, and 20%) and neem gum powder (0%, 3%, 6%, and 9%) in the matrix phase. These investigation goals are to evaluate the strength and performance of the fabricated composite
Side door latches in an automotive play a major role in occupants’ safety. The latches consist of both retention assembly and actuator assembly. The actuator assembly majorly consists of motor, gear & other components and these are protected through a Plastic Lower case and Housing. The Lower case (over-mold) with the Electrical Component Carrier - ECC (pre-mold) plays an important role in providing electrical power supply to the latch system. Since these parts are manufactured with terminal traces & plastics, upfront mold flow simulations help the product teams to evaluate the short fills, warpage, and other quality aspects in the critical areas of these components. In the part assembly station, the ECC (pre-mold) and the Lower case (over-mold) are connected to the Motor on one side and the Connector on the other. The proper alignment of the pre-mold pins is of great importance and the pre-mold must not be externally visible once the molding is complete. During the prototype build
This SAE Standard specifies requirements for vulcanized rubbers in sheet form for use as standards in characterizing the effect of test liquids and service fluids. The appendices contain the standard reference elastomer formulas. The property changes of the SRE in contact with the indicated fluid under specified test conditions are the responsibility of the user. See 7.3 and Table 1. This standard is not designed to provide formulations of elastomeric product compositions for actual service
This specification covers a closed cell silicone rubber sponge in the form of sheet, strip, extrusions, and molded shapes
Innovative robotic rotational molding technology allows for the use of new materials in manufacturing parts and hard cases for military and aerospace applications. This is creating opportunities for new product geometries, tighter tolerances, and less waste than traditional plastic molding. There are thousands of applications within the aerospace and defense industries using plastic parts and storage containers. Today, the production of specialized parts and protective hard cases for military applications can call for unique materials to meet more stringent standards (flammability, high heat/cold tolerances, airtightness, watertightness, electromagnetic interference shielding, multi-layering, to name a few). Meeting these strict requirements can be challenging when using traditional molding processes such as rotational molding, thermoforming, blow molding, or injection molding
Design for manufacturing (DfM) is a huge focus for the medical device sector today, and it becomes an ever more important consideration when production moves from time-worn and conventional manufacturing processes to more esoteric processes such as micro additive manufacturing (AM) and micro injection molding, both of which are at the cutting edge of precision plastic part and component manufacturing
This specification covers a mold release agent in the form of a liquid
As the complexity of signal challenges in aerospace and defense technology increases, design engineers need to creatively combine materials to solve multiple problems at once. Comolding, which involves combining two uncured elastomers with different electrical properties into one homogeneous material or molding elastomers with metal, fabric or composite structures, is an innovative way to address these challenges
This specification covers a polyimide plastic in the form of isostatically molded rod, bar, and tube, unidirectionally molded plaque, and direct formed parts
With hypersonics vital to national security, LIFT, the Detroit-based Department of Defense manufacturing innovation institute, along with the Department of Defense (DoD), recently awarded ATC Materials, Inc. one of the institute’s nationwide Hypersonics Challenge projects. The challenge goal: To demonstrate the repeatable and reliable production of their RIPS molded radio frequency (RF) material. Operating at speeds of Mach 5 or higher, hypersonic and counter-hypersonic vehicles are among the Department of Defense’s top priorities, as well as the development of a safe and secure domestic supply base
In the preform preparation stage of the RTM process, the fabric is draped on the mold along the geometry. Before the filling and warpage analysis, the draping analysis will be performed to get the fabric orientation. Due to the anisotropy of the fabric material, the main direction of the material has a significant influence on the overall flow behavior and warpage of the product. In this study, the advanced simulation approach for the RTM process is demonstrated. The filling and warpage analysis integrate with the draping simulation result. The influences of fabric shearing and fiber orientation on the resin flow and product warpage in RTM process is studied. With more accurate fabric orientation prediction methods, the accuracy of predicting fabric ply orientation is improved and more accurate infusion and product warpage simulation results can be obtained
Shaping glass is mainly based on processes such as melting, grinding, or etching. These processes are decades old, technologically demanding, energy-intensive, and severely limited in terms of the shapes that can be realized. Researchers have developed a process that makes it possible to form glass easily, quickly, and in almost any shape using injection molding. The process combines polymer and glass processing, effectively replacing both mass-produced products and complex polymer structures and components with glass
Weight reduction in automotive applications have led to the processing of thermoplastic polymers by foam injection molding. The density of the foamed polymer can be reduced up to 20%. Whilst, work has been reported on the weight reduction of the foamed polymer by using different types of blowing agent technologies, there has been limited studies in the areas of the sound transmission loss and sound attenuation properties of these materials. The present study is intended to understand the effect of chemical blowing agent (CBA) on the properties of polypropylene. The molded specimens were characterized using density, Differential scanning colorimetry (DSC), Thermogravimetric analysis (TGA), Fourier transform infra-red spectroscopy (FT-IR) and sound transmission loss (STL) measurements. Specimens were also tested for tensile properties, flexural properties, Izod impact strength and Heat deflection temperature (HDT) as per standard test protocol. Cell structures were observed using stereo
Polymers are substituting traditional materials, such as metals, in existing as well as new applications, both for structural and aesthetic applications as they are lightweight, customizable and are easy to mould into complex shapes. With such an extensive use of polymers, there is a need to carefully scrutinize their performance to ensure reliability. This is particularly the case in the automotive and electronic industries where the aesthetic appeal of their products is of prime concern and any visible scratch damage is undesirable. Concern for aesthetics has led to a need for the quantification of visibility due to scratch damage on polymeric surfaces Many painted plastic parts used in vehicles are being replaced with the molded-in color plastics for cost reduction and also due to environmental concerns associated with solvent emissions. There are multiple methods used for scratch evaluation of polymers and paints. With the boundaries of plastics and paints diminishing, there is a
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