Turning Grades Meet Demand for HRSA Machining in Aerospace
Sandvik Coromant introduces two new ceramic insert grades that are capable of performing high-speed, high-security turning operations on components made from demanding HRSAs.
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Sandvik Coromant introduces two new ceramic insert grades that are capable of performing high-speed, high-security turning operations on components made from demanding HRSA (heat-resistant superalloy) materials. The CC6220 and CC6230 ceramic grades are developed to machine demanding materials where whisker ceramics and SiAlONs fall short. Their ability to handle higher cutting speeds contributes to reduced cost per component, while inherent machining security ensures that quality is not compromised, according to the company.
The company claims that there is growing demand for aerospace engine parts that can withstand extreme temperatures beyond the capability of those made from Inconel and other high-performance superalloys. Although these powder metallurgic materials can be tailored to handle substantially higher temperatures, they are more difficult to machine than common HRSAs. CC6220 and CC6230 are said to excel when turning demanding materials in intermediate stage machining. One of the most common applications to benefit is expected to be turbine disc turning.
Aside from the aerospace industry, other sectors expected to benefit from CC6220 and CC6230 include power generation (turbine components in Inconel and Hastelloy, for example), and oil and gas (parts cladded with Stellite 6, for example).Related Content
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