Selection of CNC Machine Tools
Modern industry’s reliance on computers has made the selection of CNC machine tools a complex task that requires a thorough understanding of the relative merits of different types of machines and their applications. This article outlines the considerations to be taken into account when making the selection of a CNC machine tool.
1. The merits of CNC
CNC stands for Computer Numerical Control and is worthwhile to consider the advantages of such machines over manual machines before selecting the most appropriate machine. First and foremost, the level of automation and accuracy of cutting is higher in CNC machines. The control system of the machine is generally easier to use, meaning that complex parts can be machined with much greater precision and accuracy. As the machine operates through a computer programme, repetitive matting tasks can easily be automated which vastly reduces the amount of operator input required. Furthermore, the computer can store and recall different profiles, making it capable of producing the same part repeatedly in the same accurate manner.
2. Considerations when selecting a CNC Machine
The selection of the most appropriate CNC machine should take into account several factors. First, the type of material to be machined must be taken into account. A variety of materials require different machining methods and as such, the type of machine must be selected accordingly. Furthermore, the maximum size and weight of the part should be taken into account when selecting the appropriate machine. If a part is too large or too heavy for the machine then it may lead to the machine becoming overworked, resulting in inaccurate and inefficient production.
Another factor which should be considered is the power, speed, and torque of the machine. As different machines have different power, speed, and torque ratings, it is important to consider which of these properties is the most critical. If speed is the primary factor, then it is important to identify the fullest levels of speed and acceleration provided by the various machines before making a selection.
3. Taking into account the budget
Price and cost are another set of important considerations when selecting a CNC machine. This is because not all machines are the same price and they may differ substantially in terms of their cost. Before selecting a machine then, it is important to compare the price and cost of different machines to identify which model meets the budget. Furthermore, it is important to consider not only the price of the machine, but also other associated costs such as tooling, maintenance and spares in order to ensure that the cost is within budget.
4. Taking into account safety
Finally, safety is an important consideration and should not be overlooked. The machine should be fitted with safety features, such as safety guards and emergency stops, to protect the operator from injury. Furthermore, the operator should be trained in the operation of the machine and its maintenance in order to ensure safe operation.
In conclusion, the selection of a CNC machine tool is an important process that requires consideration of the different merits of machines and their features in order to identify the most appropriate machine for the task. By taking into account all of the considerations outlined in this article, organisations can ensure that the machine they use is fit for purpose, both in terms of safety and cost.
