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High Speed Milling on VMCs

8th July 2013
High Speed Milling on VMCs
High Speed Milling on VMCs
 
With the constant advancements in the field of industrial operations and design, especially in the aerospace industry, most of the commonly used manufacturing processes have become outdated.  As a result, they have to be replaced by new and much improved processes for sustaining better performance, efficiency, productivity, and profitability.  Whilst most manufacturers are investing in new machinery, there are still some companies that are sticking to old methods and procedures.
 
Traditional milling is one such most commonly used operations in the aerospace industry for machining parts to the required sizes and shapes.  Milling refers to removing abrasive materials from the work pieces with the help of cutters and transforming them into specific, predetermined shapes and sizes.  It is one of those industrial procedures that have experienced significant developments, improvements and refinements lately with the entry of Virtual Machining Centres (VMCs).
 
The traditional milling tools have become so advanced now that the computer software applications are capable of running the machines and manufacturing the same products at a much reduced cost and in double-quick time with the help of high-speed milling on VMCs.  The VMC is even capable of unmanned operations day and night and can consistently produce high quality output.
 
The VMC carries on the milling operations by rotating the work-piece on a vertical axis instead of horizontal axis rotation, and helps in producing a wide range of different aviation products and parts. The spindle axis in the vertical milling tools is generally oriented vertically and the cutters rotate beside this axis.  This orientation of the axis, thus, enables easy extension of the machine’s spindle and can readily produce a wide variety of plunge cuts.
 
The VMCs are mainly of two types: beds and turrets.  The bed VMC enables the table to move in an axis that is only perpendicular to the spindle axis.  The large VMCs are generally the bed-type mills as they allow perpendicular movement.  On the other hand, the turret VMC has a stationary spindle and the table itself is moved for completing the milling processes.  This allows the machine to perform at higher speeds to carry out its cutting operations in two different directions.
 
VMC has transformed the aerospace machine shops into accurate engineers and has provided them the ability to deal with more complex compounds and difficult materials, whilst still adhering to strict size and geometric tolerances.
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