EDM machines used in precision machining Toronto
Wire electrical discharge machining – or wire EDM makes use of a thin metal wire that is fed from a spool through the work piece to cut plates, make punches, tool and dies. The metal and wire cutter is submerged in water to act as electrical insulator. The wire is held between the upper and lower diamond guides which are CNC controlled to cut very delicate shapes. No high cutting force is required in material removal so that there are low residual stresses.
Sinker electrical discharge machining – or sinker EDM makes use of an electrode and metal that is submerged in an insulated liquid like oil. A power supply generates an electric charge between the electrode and the metal and when a spark is produced, it cuts on the metal. Several hundred thousands of sparks are produced per second that is controlled by setup parameters known as on-time and off-time. The on-time setting will determine the length and duration of the spark.
Small hole EDM – is used by precision machining Toronto to drill rows of holes. Gas flow through the small holes allows engines like jet engines to use higher temperatures that would otherwise be impossible. High temperature and very hard crystal alloys that are employed on turbine blades makes conventional machining extremely difficult and not likely possible. Small hole EDM is also used in creating microscopic orifices for fuel system components,
Precision machining Toronto through CNC machines
The process of machining using CNC technology is very precise and can produce complex and unique shapes with very tight tolerances. CNC machines also have the advantage of repeatability in producing precise parts because a program of instructions can be saved on the computer to be retrieved for the same future order. One example is a CNC lathe that has a computer controlled method of generating a variety of shapes, features and dimensions while holding close tolerances. Turning which is usually performed on a lathe can be performed on CNC turning centers for large volume production. CNC turning centers are equipped with excellent memory, a capability that ensures superior repeatability. More precision-based dimensional tolerances are possible in the CNC turning centers even within the stringent parameters set for the process.
A lot of precision-based products will not be possible without CNC technology. CNC machines are programmed with advanced design software which makes it easy to produce complex products easily. Once programmed, CNC machines do all the work with very minimal downtime. Cutting tools may require occasional replacement. Although the initial costs are significantly high, it is offset by results that are extremely accurate and precise.