Snap Fit

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The words snap fit indicate exactly what is going on with this type of assembly. Some detail of one part is deflected from its rest position by some detail of the other part and it snaps back to rest position … Continued

Fasteners

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Fasteners have been used to assemble thermoplastic components almost as long as there have been thermoplastic components. Of course, some of the earliest plastic parts were things like combs that did had no assembly requirement, but it wasn’t long before … Continued

Joining Methods

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It’s hard to say which thermoplastic joining process came first, hot plate welding, hot tool staking, solvent bonding, adhesives, snap or press fits, or fasteners. We know that ultrasonic welding came in the early 1960s, vibration welding in the late … Continued

Process Selection

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One of the more basic questions about plastics assembly is how to know which process to specify for the assembly. Often, the size and configuration of the parts and the material inolved will rule out various options. Since very few … Continued

Thermoplastics Assembly

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When considering whether to even attempt to blog about assembly of thermoplastic components, the issue of whether I was enough of an expert to be holding forth on the topic kept entering my mind. I have written a lot of … Continued