Rise of multitasking: Turning Performance

Every shop, large or small, is constantly trying to improve productivity and part quality. The drive to reduce setup times and operator intervention has led to the proliferation of multitask machines.

Multitask machines range in price and complexity from lathes capable of driving rotating tools to large machining centers that can effectively perform the turning and milling operations needed to complete complex parts in one setup.

It is easy to understand how multitask machines can improve productivity, but the complexity that makes them more productive requires machinists and engineers to reconsider how they approach machining operations. Successful implementation of a multitask machine requires careful planning and consideration of key elements.

Multitask machines can have complex and expensive features, such as large tool magazines, probes, tool measurement systems and monitoring devices. These features allow users to maximize gains from the machine by limiting human interaction.

However, setup and learning to use these tools can be challenging. Shops should carefully consider training requirements needed to properly operate and program multitask machines. Gaining the maximum benefit requires efficient utilization of the features, and it is easy to overlook training. Training is rarely given on-site, which means employees must travel for training. Travel is expensive and negatively impacts shop production, making it likelier a shop will circumvent the training process. Insufficient training will result in less-than-efficient use of a machine and could lead to serious damage from misuse.

CAM software is required to efficiently program these machines. Proper utilization of CAM software requires training, which, like machine training, can be expensive and disrupt production.

Multitask machines, such as this Nakamura-Tome NTJ 100 with a B-axis upper turret for machining features at any angle, are going to continue to grow in popularity as manufacturers push to increase productivity. Image courtesy Methods Machine Tools.

In addition, a significant amount of development time often is needed to get the post-processor for the CAM software to where it will provide the desired CNC code for the machine control. As machine complexity increases, so does the time needed to develop the post-processor. Development time can delay the return on investment while causing quality and delivery issues.