The new tool offers vibration-free machining for aerospace applications and more.
Metal cutting tools and services provider Sandvik Coromant has unveiled a brand-new high-feed milling solution for milling cavities or pockets in ISO S, M, and P materials. The new CoroMill MH20 is the latest addition to the CoroMill product line and was specially designed for machining aerospace components. According to the company, the tool can machine challenging components such as oil and gas, as well as mold and die. The CoroMill MH20’s ability to machine at long overhangs makes it particularly well suited for aerospace applications.
“Machining components for industries like aerospace, oil and gas, and mold and die can be challenging,” shared Sangram Dash, application manager at Sandvik Coromant. “In the aerospace sector alone, manufacturers must handle conditions such as thin floors and walls, deep pockets, and tight corners. When designing the CoroMill MH20, we kept the stringent requirements of all these sectors at the fore. For example, the tool is capable of completing several different operations to reduce the number of tools, changeovers, and tool handling required during manufacturing, thus reducing cycle times and improving manufacturing economics.”
The main feature of the CoroMill MH20 is its curved two-edge insert, which is a departure from the traditional four-edge design. This means that the weakest section of the insert is located away from the main cutting zone. Sandvik Coromant shared that this shift in design was intentional, enabling improved reliability and protection against wear and tear. This change will also prevent the tool from impacting the next edge or leading corner even when machining against a corner or wall, maintaining a consistent performance per edge.
The tool’s sloped edge design delivers a gradual and light-cutting action that requires less power consumption to enable the use of smaller machines. In addition, the CoroMill MH20 also offers innovative geometry through an optimized edge line in the main cutting edge and a reinforced insert corner radius that allows for secure and reliable machining even when the machining process is unmanned or machining occurs against shoulders and corners in pocketing. Further, the MH20 delivers vibration-free machining even during long overhangs.
According to Dash, Sandvik Coromant will be offering “dedicated insert geometries for different ISO areas to deliver greater optimized process security and productivity.”
The open pocket design also helps to improve chip evacuation and reduces re-cutting of chips. This was specially optimized for chips generated by a high feed tool and minimizes smearing of chips, particularly in ISO S applications.
The company has been continually working toward delivering higher reliability while extending tool life through its high feed milling solutions. Compared to another Sandvik Coromant feed milling tool, the CoroMill 415, the new CoroMill MH20 managed to deliver a 32 percent increase in tool life. It also demonstrated enhanced component quality when machining a titanium aerospace wing support component. The company also adds that the MH20 was able to perform well under further testing against competing tools, delivering good reliability and a more secure machining performance when machining steel and stainless steel workpieces.
“In particular, engineers working in aerospace machining cannot afford to make mistakes, especially when the quality control standards for aircraft engine components are so high,” added Dash. “So being able to deliver reliable tools with consistent tool life is a top priority for Sandvik Coromant.”
For more information on the new CoroMill MH20, visit Sandvik Coromant’s official website.