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The International Journal of Machine Tools and Manufacture is a peer-reviewed scientific journal dedicated to report the latest advancements in the fundamental understanding of mechanics of processes and machines applied to the manufacture of engineering parts made of metals, composites, ceramics and other structural/functional materials. [1] [2]
The journal is abstracted and indexed in Scopus and the Science Citation Index.According to the Journal Citation Reports, its 2013 impact factor is 0.661, ranking it 32nd out of 39 journals in the category "Engineering, Manufacturing" [2] and 80th out of 126 journals in the category "Engineering, Mechanical".
Draft angle design is an important factor when designing plastic parts. Because of shrinkage of plastic material, injection molded parts have a tendency to shrink onto a core. This creates higher contact pressure on the core surface and increases friction between the core and the part, thus making ejection of the part from the mold difficult.
Injection moulding (U.S. spelling: injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting ), glasses , elastomers , confections , and most commonly ...
Figure 1: Comparative Costs and Production Volumes For Processing of Plastics. The economics of plastics processing is determined by the type of process.Plastics can be processed with the following methods: machining, compression molding, transfer molding, injection molding, extrusion, rotational molding, blow molding, thermoforming, casting, forging, and foam molding.
The toughest grades have the highest molecular mass, but are more difficult to process. Unlike most thermoplastics, polycarbonate can undergo large plastic deformations without cracking or breaking. As a result, it can be processed and formed at room temperature using sheet metal techniques, such as bending on a brake. Even for sharp angle ...
The rotational molding process is a high-temperature, low-pressure plastic-forming process that uses heat and biaxial rotation (i.e., angular rotation on two axes) to produce hollow, one-piece parts. [9] Critics of the process point to its long cycle times—only one or two cycles an hour can typically occur, as opposed to other processes such ...
In 2022 SPE launched its "Plastics and Beyond" podcast, which focuses on issues of diversity, equity and inclusion in the manufacturing industry. [1] Through lively demonstrations and hands-on activities, the Foundation's PlastiVan® Program is designed to excite students about opportunities in science and engineering within the plastics industry.