Deep Hole Drill Insert Chip Control
Deep Hole Drill Insert Chip Control
The machining of precision components with demanding dimensions is a critical process for many industries.deep hole drill insert chip control While new manufacturing technologies have evolved, such as 3D printing and laser cladding, machining remains the best choice for producing parts with precise size and shape requirements. Deep hole drilling is a key application where high performance cemented carbide inserts are used to produce complex, precision holes in metal products.
While this specialized tool is designed to provide accuracy, efficiency and durability, it is still susceptible to chip control problems, especially in applications with extreme depth-to-diameter ratios such as PCB fabrication. Incorrect tool positioning can disrupt electrical conductivity, and poor chip evacuation can lead to recutting, excessive heat buildup and tool breakage.
Fortunately, machinists can mitigate these challenges by following a few simple strategies. First, they should collect detailed information about the application including the material type and hardness, hole tolerance, surface finish requirement and machine condition. This will help them determine the flute shape, point geometry and coating combination that will break chips into manageable shapes that can be evacuated effectively.
In addition to ensuring that the proper insert is selected for a specific application, machinists should also optimize coolant delivery and pressure as well as the type of coolant. Pressurized coolant, particularly at the tip of the tool, helps to push chips out of the way while coolant delivered along the insert’s length forces them up and away from the cutting edge. Using a "peck drilling" cycle, in which the tool is periodically retracted to break up larger chips into more digestible bits, can also improve chip control and reduce wear.
Finally, machinists must ensure that the appropriate depth-to-diameter ratio is established for the application. This will determine how long of an insert to use and will also influence other factors, such as tool runout, which increases with the tool’s length. A tool holder that is able to accurately compensate for this effect will improve the accuracy of the overall machining process.
With the right approach to chip control, machinists can reduce cycle times, improve the quality of their parts and extend tool life. By assessing the condition of the tool and taking steps to ensure that it is performing as expected, machinists can confidently use a wide range of drilling processes in the most demanding applications. Ultimately, this will make a significant impact on productivity, cost savings and the quality of their finished products. For more information, visit Sumitomo Electric Industries’ website. Or contact a local representative. We look forward to assisting you with your next project.