Guides That Could Help You Work With CNC Turning Machines

By John Hill


Turning machines are tools for cutting with non rotary bit moving linearly while the material rotates. Their movement axes are either a straight line, with curves or with angles but essentially are linear and intended for external surfaces. If applied on internal surfaces, the process is called boring and together they are categorized as lathing.

These processes are traditionally done manually with an operator supervising them while recent ones are automated and supervision is not needed. The latter are done with CNC turning machines in CT where computer programs control the operation. Early versions of these creates complex geometric figures although it has become pretty rare for them to get created.

Turning processes are executed usually with lathe which has four types such as taper, straight, external grooving and profiling. These can create various shapes of workpieces like conical, straight, grooved and curved. If you like to try the process at home with your own small machine for doing your personal projects, follow these helpful guides for using them.

Buy carbide cutters that are high quality from brands you trust to achieve results which are better instead of buying those from no names that are inexpensive. They have the tendency to easily break specially when being used with metals that results to constant replacements and more expenses. Most expensive ones are not needed as long as you buy from brand with favorable reviews and good reputation.

Buy calculators of feeds and speeds, that are feed rate and the cutting speed respectively, for making sure they will be precisely set. The latter is speed difference between cutter and workpiece surface and the former is velocity the tools have when advanced along. Correct precision is required by tough materials and without calculators, calibrating them is impossible.

Determine the correct cut depth and width which is important to avoid tool deflection or bending that can cause accuracy problems. This will add to chip load, or the thickness of removed material, and contributes greatly to early breakage. Deflection also reduces CNC accuracy because the instrument is not on its exact location as expected by the code.

Small machines commonly have issues of easily moving around when they work with powerful force because they lack weight required. This is unlike larger ones that can handle jobs with high power like cutting stainless steel. Reduced the force used in your cuts according to their size so they would stabilize when using them.

Some consumer grade machines have toolholders which are cheap that would not endure pressures from tough materials. Toolholders are those steel bar with shanks clamped to a machine while the other side has a clamp to hold interchangeable tools. If cutters break often, either you need to reduce the chip load or have your toolholders upgraded.

Ensure that coolant is used which can reduce several related issues in cutting various tough materials such as material hardening or heat retention. Using one when working on difficult materials is a great idea to have. Some more guides are available that can help you and visit your local shops if you still have more questions.




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