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Guides That Could Help You Work With CNC Turning Machines

By John Hill


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

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 high quality carbide cutters from trusted brands to achieve better results rather than buying inexpensive ones with no names. They tend to break easily specially when used with metals resulting to more expenses for constant replacements. You will not need the most expensive ones but those from a reputable brand with favorable reviews.

Buy calculators for speeds and feeds, or cutting speed and feed rate respectively, to make sure they are set with precision. The latter is velocity of the tools when being advanced along and the former is speed difference of workpiece surface and cutter. Tough materials need them precised correctly and calibrating them without calculators is not possible.

Determine the correct depth and width of cut which is important in avoiding tool deflection or its bending that causes accuracy problems. This would add to chipload, or the removed material thickness, and largely contributes to early breakage. The deflection reduces CNC accuracy also because the instrument will not be where the code expects its exact location is.

Small machines have common issues of moving around easily when they work using powerful force because their weight is lacking as required. Larger ones are unlike them which can handle jobs using high power like stainless steel cutting. Reduce the force your cuts are using according with their size so when used, they would stabilize.

Some machines that have consumer grades possess cheap toolholders that will not endure pressures coming from tough materials. Those toolholders are a steel bar with shanks on one side clamped into the machine and other side having clam for holding the interchangeable tools. If your cutters break often, you should upgrade the toolholders or reduce the chipload.

Be sure of using coolant which could reduce some issues related with cutting some tough materials like heat retention or material hardening. Therefore, using one when you work with difficult materials would be a good idea. These are some guides that could help you and if you have more questions, visit your local shops or let them work on those your machine cannot handle.




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