Metal injection molding lets designers create tiny custom hinges for handheld electronics. MIM gave designers a cost-effective means of differentiating the Motorola V60C phone from its peers. Advanced Materials Technologies Pte. Ltd. molded the hinges from stainless steel and polishes them to a mirrorlike finish. Conventional hinges for handheld electronics are made from polyoxymethylene-(POM) and come in standard-nude or can styles with predefined torque, opening angle, and dimensions. The flipping motion of the clamshell hinges on the cam. The cam is a multiple curved wheel mounted on a rotating shaft, used to produce variable or reciprocating motion in another mating part. Stainless steel is used for strength and performance of flipand-twist hinges for cell phones. Additionally, the design freedom associated with MIM coupled with miniaturization of cellular phone components gives more options for flexible printed-circuit-board pathway design and protection. Flip-and-twist hinge design adds a bit more whimsy to standard clam shell cell phones. The concept is currently being investigated for camcorders, digital cameras, PDAs, and notebook computers. The quest for quality at competitive prices is pushing designers of handheld electronics to think of lean manufacturing for components. It is wise to take a closer look at alternative manufacturing technologies early in the design cycle. This is one way to beat the competition to market and help differentiate a product from the rest of the pack. One such alternative technology is metal injection molding (MIM). It is increasingly adopted to fill the niche where other metalworking processes are not viable. Typical examples are in miniature components such as rotary hinges found in cell phones, PDAs, laptops, tablet PCs, and camcorders. MIM combines the lean manufacturing benefits associated with plastic injection molding (design freedom, parts consolidation, and high-production volumes) with powder metallurgy to transform metal powder into solid, net-shape components that would be
Products & Services
Molding machines form thermoplastic resin, thermoset polymers, or MIM compounds into finished shapes.
Mold Making Services
Mold making services design and build tooling and patterns for a variety of molding processes, including investment casting, permanent mold casting, sand casting, die casting, lost foam casting, powder metal, die forging, injection molding, blow molding, extrusion, thermoforming, compression molding, rotational molding and others.
Chip antennas are semiconductor ICs used to collect or radiate electromagnetic waves.
Industrial hinges are jointed devices that allow an attached part, such as a door or window, to swing.
Topics of Interest
Metal injection molding (MIM) is a powder metallurgy process used for manufacturing metal parts. Although MIM uses powder metal, it is nothing like conventional powder metal process. The metal powders...
Advanced manufacturing: Design Considerations for Metal Injection Molding Metal injection molding (MIM) produces relatively small (150 to less than 30-gm), complex, net, or near-net parts which can...
Metal injection molding produces complex powder- metal parts with strength and modulus values comparable to those of wrought metal. A putter molded for Ping "Specified Putter" by Powder...
Metal-powder injection molding stacks up well against other metalworking methods for cost and quality. A real-world example shows how. Vice President of Manufacturing & Product Development Metal...
Polypropylene resins are uniquely suited for one-piece integral or living hinges. Due to its toughness and ductility, polypropylene (PP) is uniquely suited for a fastening and joining concept that...