Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. A wide variety of products are manufactured using injection molding, which vary greatly in their size, complexity, and application. The injection molding process requires the use of an injection molding machine, raw plastic material, and a mold. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part.
MACHINABLE PLASTICS FOR MECHANICAL ENGINEERING
Injection molding machine
Polyetheretherketone (PEEK) - PEEK natural is a high performance, high temperature, semi-crystalline thermoplastic...
MC-NYLON natual cast nylon offers a combination of good mechanical properties, excellent bearing and wear characteristics, and the large-size capabilities of the casting process.
Injection molded parts
PET-P white is formulated to provide improved toughness, and enhanced machinability. The material also offers excellent sliding and wear properties as well as a low coefficient of friction…
HPV-PEEK black is a modified PEEK polymer with 10% each of PTFE, graphite, and carbon fibre. That makes HPV-PEEK an ultra high performance plastic material …
PA 6 GF30 is a 30 % glass fibre reinforced polyamide that we manufacture under the trade name PA 6 GF30 black...
PET-TF grey is PTFE modified, giving excellent slide / wear characteristics. PET-TF is often used for parts in the food processing industry, as it is approved for direct food contact...
The addition of molybdenum disulphide (MoS2) to PA66 produces a material with improved sliding and friction properties...
CASE STUDIES MECHANICAL ENGINEERING
Three Dimensional Printing (3DP) technology was similar to the Selective Laser Sintering (SLS) process, but instead of using a laser to sinter the material, an ink-jet printing head deposits a liquid adhesive that binds the material. Material options, which include metal or ceramic powders, are somewhat limited but are inexpensive relative to other additive processes. 3D Printing offers the advantage of fast build speeds, typically 2-4 layers per minute. However, the accuracy, surface finish, and part strength are not quite as good as some other additive processes. 3D Printing is typically used for the rapid prototyping of conceptual models (limited functional testing is possible).
The 3D printing process begins with the powder supply being raised by a piston and a leveling roller distributing a thin layer of powder to the top of the build chamber. A multi-channel ink-jet print head then deposits a liquid adhesive to targeted regions of the powder bed. These regions of powder are bonded together by the adhesive and form one layer of the part. The remaining free standing powder supports the part during the build. After a layer is built, the build platform is lowered and a new layer of powder added, leveled, and the printing repeated. After the part is completed, the loose supporting powder can be brushed away and the part removed. 3D printed parts are typically infiltrated with a sealant to improve strength and surface finish.
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