Working with CNC Machine Tools

CNC machining has the ability to run thousands of parts smoothly and accurately with the push of a button. But many complex components must work together to produce a workpiece of consistent quality without costly downtime. The smallest fraction of measurement or timing error can bring production to a full stop. Tooling is one of those components with great significance. Here we look at addressing common problems working with CNC machine tools.

Hardware

Tool Selection

Problems with material finishes are often the result of tool choice. Tool size and material composition is an important choice depending on the material and the finish requirement of the workpiece. Incorrect tool choice can cause uneven finish, especially in corners. This will shorten the life of the tool through extensive wear. A blunt tool will also cause further finish problems in production.

The improper feed speed ratio is another tool-related problem. Both the workpiece material and cutter tool material determine the rate of speed. Knowledge in metallurgy is necessary when specifications and tolerances must be verified against material hardness and tensile strength.

Clamping

Clamping of the workpiece is important in setup and production. The tool must also be securely fitted into the chuck, and the chuck must be securely fastened in the machine fitting. Lubrication, hydraulics, and electrical connections are equally important to the proper operation of the chuck.

As above, the quality of the workpiece finish will suffer due to vibration or shifting. A loose-fitting could cause damage to the workpiece, the tool, the CNC machine, or even the operator.

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Rapid Enterprises is a full-service CNC precision machine shop located in Toronto, offering machining solutions across 5 axis machining.

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Rapid Enterprises

Rapid Enterprises

Rapid Enterprises is a full-service CNC precision machine shop located in Toronto, offering machining solutions across 5 axis machining.

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