Injection molding is a manufacturing process for producing parts by injecting material into a mould. Injection moulding can be performed with a host of materials, including metals, elastomers, and most commonly thermoplastic and thermosetting polymers. Material for the part is fed into a heated barrel, mixed, and forced into a mould cavity, where it cools and hardens to the configuration of the cavity. Injection molding is widely used for manufacturing a variety of parts, from the smallest components to entire body panels of cars.
1. Clamping. Make preparation for the mold,feed the polymer resin (pellets) down to the auger (screw) and melt the polymer and ready for injection into the mould, clamp the mould.
2. Injecting. Polymer Melt is injected Into the Mould at high pressure (typically 10,000 - 30,000 psi).
3. Cool the mould. Typically moulds are air or water cooled. Injection mould cooling consumes about 85% of the cycle time for the entire process.
4. Unloading the mould. After solidification, the clamp holding the two halves of the mould together closed shall be opened allowing the parts to be removed.
With fully automatic robots, INNORAPID is able to produce top quality molded parts within 10 workdays.
Piece price is significantly lower with molding vs other processes, particularly as production quantities increase into the thousands.
Molded parts generally perform better than the same CNC Machined parts from the same material. Selection of the resins allow for a wide range of corrosion resistance and chemical and solvent compatibility.
Molds are CNC machined to high precision, high tolerances and are able to produce thousands of identical parts with very small and intricate details.
Robot arms are applied so that fully automatic production can be achieved and parts could be delivered in 10 days or less.
Rapid over-molding for complex plastic parts.
Generally, it will take 2 weeks to 3 weeks. It can be shorter as per specific situation.
Expert feedback and free design for manufacturability (DFM) analysis.
From 50 pieces to 10,000 pieces each year.
Micro injection molding will be launched, which can effectively reduce the production cost of low-volume injection and shorten the mold development time (from 4 weeks to 1-2 weeks).
|Materials||Material Category||Attributes / Applications|
|PA+GF||Plastic||Gear / Machinery / Automobile|
|TPE/TPU||Plastic||Soft material, similar to rubber|
|PEEK||Plastic||Automotive and Electrical Applications|
|PA6+GF30||Plastic||Bearing / Gear / Machinery / Automobile / Electric apparatus|
|PPS||Plastic||Good heat resistance. Electrical parts / Auto parts / Chemical equipment|
|PTFE||Plastic||High-frequency electronic equipment / Radar / Insulation parts|
|PS||Plastic||Lampshades / Transparent food containers / Cassette tape cases|
|PA||Plastic||Bearing / Gear / Machinery / Automobile / Electric apparatus|
|PP||Plastic||Housings / Living hinges / Thin-Walled Parts|
|PMMA||Plastic||Vehicle lights / Lenses / Light pipes|
|POM||Plastic||Good abrasion resistance. Gears / Bearings|
|PC/ABS||Plastic||Automotive interior part / Consumer electronics product / High-end helmet / Mobile phone casing / General molding product|
|PC||Plastic||Excellent transparency, high heat resistance, ultra high impact resistance, dimensional stability, etc., a wide range of applications.|
|ABS||Plastic||An excellent engineering plastic.Housings / Lamp seats / Toys / Household appliances|
For more specific materials, please feel free to contact our engineers.
After machining, surface finishes are applied and customers can select the appearance, surface roughness, hardness and chemical resistance of the finished parts as they like. What surface finishing can I get? Click Here
Injection Molding is widely applied in rapid prototyping and producing pilot and low-volume production parts in a wide range of industries, such as medical & dental devices, scientific instruments, auto parts, home appliances, engineering companies, and robotics etc.