This is known as micromolding
and is especially important for producing the detailed plastic parts used in the latest electronic and medical devices (see the story on p.
We define micromolding
not by the overall size of the part, but by the size of the features or tolerances on the part, which for us are in the micron range," explains Stuart Kaplan, Makuta's founder and president.
Rapidwerks Inc of Pleasanton, California, Is promoting Its Precision MicroMolding
manufacturing expertise in this specialized area to product designers, OEMs, and processors.
Key Vendors -- Makuta Technics -- Micromold -- Micromolding
Solutions -- Stack Plastics
The total clean room manufacturing space is now 35,000 square feet, which enables MRPC to meet increased demand for silicone molding, multiple-material molding micromolding
medical molding and thermoplastic molding while also adding high-tech jobs in the Milwaukee area in the medical device manufacturing industry.
Some of the well known micro molders include Accumold, ALC Precision, Micromold Inc, American Precision Products, Makuta Technics, Micromolding
Solutions, Micro Precision Products, Precimold Inc, Rolla AG, Rapidwerks, Stack Plastics, Stamm and Sovrin Plastics among others.
To achieve a mass production of precise plastic microchannels, a microinjection molding process, which is the most productive one among various micromolding
technologies, was carried out using a micromold of half-circular microstructures.
Conventional techniques, such as micromolding
and organ printing, are limited by slow cell assembly, large volumes of cell suspension, complicated multi-step processes and expensive instruments.
What's exciting about this work is that not only have we designed a new method for making nerve guide scaffolds which support nerve growth, we've also developed a method of easily reproducing them through micromolding
Ten chapters are arranged in sections devoted to lithography (photolithography and next-generation lithographies); pattern transfer with subtractive techniques (dry etching, wet chemical etching and we bulk micromachining, thermal energy-based removing, and mechanical energy-based removing); pattern transfer with additive techniques (physical and chemical vapor deposition, micromolding
techniques, and chemical, photochemical, electrochemical, and thermal energy-based forming techniques).
The company's medical molding unit has undertaken micromolding
of small, biodegradable polymer components for reattaching soft tissue to bone.
A sampling of topics: deposition of adherent diamond coating on WC-CO substrate, modification on hydrophilic property for harsh environment, metal micromolding
with surface engineered inserts, hydrogen radical etching effect on carbon nanotube growth, plasma surface modification of polymeric materials, oscillatory temperature-driven morphological relaxation of surface ripple using weak pulsed laser, and in situ optical tribometry studies of nanocomposite coatings.