Tuesday, August 29, 2017

Guides For CNC Turning Machines That Can Help To Use Them At Home

By John Hill


Turning machines are used for cutting a rotating material while using a non rotary bit while moving linearly. Their movement axes have either angles, straight line or curves but are linear essentially and applied to external surfaces. Boring is what you called to that process applied to internal surfaces and together, lathing is their categorization.

These processes are manually done traditionally with an operator to supervise them while the recent ones will be automated with no supervision needed. The latter are performed via CNC turning machines in CT which their operations are controlled by computer programs. Their early versions creates geometric figures that are complex although creating them now is very rare.

Turning processes are usually executed by lathe with four varying types like external grooving, profiling, taper and straight. These can produce different shapes of workpiece such as grooved, curved, conical and straight. If you have a small machine at home and want to try this process for your personal projects then follow these guides that could help you.

Buy carbide cutters with high quality from trusted brands for achieving better results instead of buying inexpensive ones from no names. They break easily, as they tend to, specially when used on metals which results to more expenses to replace them constantly. You would not need the very expensive ones instead just those from reputable brands having 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 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 have issues commonly with them getting moved easily around when working with powerful forces as they lack the required weight. Unlike larger ones which could handle high powered jobs such as stainless steel cutting. Your cuts should have their force reduced accordingly based on their size to stabilize them when being used.

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.

Make sure coolant is being used that could reduce some related issues with cutting several tough materials like material hardening and heat retention. Therefore, using one while working with difficult materials will be a better idea. Some guides are there which could help you while your local shops can be visited if you like to ask more questions.




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