-
Joining Plastic
There are several techniques for joining plastic parts. Equipment cost and labor for each method vary considerably. Most techniques have limits on the sizes and types of plastic that can be joined. The simplest way to join plastic parts is to design a fastening element (hinge, latch, detent
-
Tips for metal-to-plastic conversions
. Plastic materials are often inherently corrosion resistant. It also takes a lot of energy to produce a metal part. Not only do metals have a much higher melt temperature, successive machining steps -- from stock shape to near-net and screw machining -- all require energy and time. Though CNC machining
-
Plastic Nuts become a hot topic
moldable at high process temperatures. In general, plastic nuts machined from bar stock make sense for low-volume applications. All of the above plastics come in bar form. Conversely, injectionmolded nuts get the nod for high-volume applications where both reduced cycle time and part cost are significant
-
Powder-Forged Connecting Rod Evaluation
processes are similar, there are a number of subtle differences between the two. The forged steel rod is fabricated by starting with a wrought steel billet, heating the billet and forging it in the material's plastic temperature range, fracturing or cutting the rod cap end, and then machining
-
Meeting Hydraulic Cylinders Rod Manufacturing Challenges Using Friction Welding (.pdf)
no resemblance to. conventional welding as no filler material is involved. Instead, two components are rubbed together at a. controlled rotational speed creating the friction and. heat that allows both components to reach a plastic. state and be forged together forming the bond. Chrome. Friction welding
-
Tips for no-melt machining
It's relatively easy to machine advanced plastic stock shapes, but you have to know what you're doing. EDITED BY JEAN M. HOFFMAN Semiconductor-equipment manufacturers machine advanced plastic stock shapes such as this fully imidized thermoset polyimide (PI) into wafer clamp rings. With a continuous
-
No stress nylon
both pellets via melt-oriented processes such as extrusion, injection molding, and compression molding as well as cast where the monomer polymerizes in the aluminum mold cavity. This monomer casting has been used since the 1960s to produce stock rod, plate, and tubular shapes for machined plastic
-
No-static plastics
, polycarbonate, and Ultem dissipate static. Stock shapes such as rod, sheet, and slabs made by Westlake Plastics Co., Lenni, Pa., are machined into various components shown here. Surface resistivity is the common measurement of a plastic material's ability to dissipate an electrostatic charge across