Material & Description ABS Good general purpose material, very tough yet very hard and rigid, good impact and electrical. Available in gauges from .040 to .475 with several extruded textures. Comes opaque and can be matched in custom colors. ABS/PC A blend or alloy of ABS and polycarbonate that thermoforms well, weathers well, good color retention, very hard, excellent impact.
What are Plastics? Plastics are a material that is made up mainly of macromolecules, that can be made fluid by the action of heating and pressurizing, and that can be processed into end products with any useful shape you want to make. Classification of Plastics Plastics can be classified into: 1. Thermoplastics and Thermo sets 2. Amorphous Thermoplastics and Crystalline
Plastics are excellent materials with unique and very useful properties. You can produce just about anything you can imagine using plastics. Characteristics of Plastics History Of Plastics: 1. Before Plastics—Age of the Natural Resins Rubber—Tough elastic substance (light cream or dark amber colored) from the milky juice (sap) of rubber tree Ebonite—Hard black rubber; natural rubber + sulfur Gutta-Percha—Dark brown
Interpolation The method by which contouring machine tools move from one programmed point to the next is called interpolation. This ability to merge individual axis points into a predefined tool path is built into most of today’s MCUs. There are five methods of interpolation: linear circular helical parabolic cubic All contouring controls provide linear interpolation, and most controls are capable
Two types of programming modes, the incremental system and the absolute system, are used for CNC. Both systems have applications in CNC programming, and no system is either right or wrong all the time. Most controls on machine tools today are capable of handling either incremental or absolute programming. Incremental program locations are always given as the distance and
The term numerical control is a widely accepted and commonly used term in the machine tool industry. Numerical control (NC) enables an operator to communicate with machine tools through a series of numbers and symbols. NC which quickly became Computer Numerical Control (CNC) has brought tremendous changes to the metalworking industry. New machine tools in CNC have enabled industry to
