Using Sialon ceramics inserts in the machining of though materials mean adding speed to production - an important factor in today's booming aerospace industry. The commercial aerospace industry is currently undergoing a boom period as new aircraft such as the Airbus 380 and Boeing's Dream liner enter production. And with airlines upgrading their fleets, this busy period looks likely to continue. So aerospace manufacturers and their component suppliers are faced with the need to increase productivity for difficult-to-machine heat-resistant super alloy (HRSA) materials.
The inclusion of nickel and chromium gives them superior heat resistance, which makes them suitable for the combustion chambers of aero engines, where temperatures of 1000 Celsius are common. But machining these materials is difficult because they generate very high cutting temperatures. This tends to cause rapid wear in conventional carbide inserts.
The solution is to switch to ceramic insert that have superior heat resistance and are particularly during the roughing and semi-roughing stages of manufacturing. Coupled with superior wear characteristics, ceramic grade inserts allow operation at cutting speeds that are five to 10 times faster than carbide inserts, which improves productivity dramatically.
Sandvik coromant has developed a number of ceramic grades for a range of tasks in first-and intermediate-stage machining operations. The company's CC670 has proven itself a very effective insert for heavy roughing applications in first-stage machining. For subsequent machining operations in the semi-roughing area, Sandvik Coromant is introducing two additional grades, CC6065 and CC6060, which complement CC670. CC6065 is considered the first choice of insert grade for operations where extra edge-line security is needed. It affords a secure and predictable performance in all applications and is an economic alternative to whisker ceramics in intermediate-stage machining. The CC6065 is also suitable for milling. CC6060 is a new grade that offers excellent notch resistance, coupled with increased cutting depth, feed and cutting length. This insert grade is particularly suitable for stable conditions and demanding tailored programming techniques where the engagement angle needs to be controlled
The inclusion of nickel and chromium gives them superior heat resistance, which makes them suitable for the combustion chambers of aero engines, where temperatures of 1000 Celsius are common. But machining these materials is difficult because they generate very high cutting temperatures. This tends to cause rapid wear in conventional carbide inserts.
The solution is to switch to ceramic insert that have superior heat resistance and are particularly during the roughing and semi-roughing stages of manufacturing. Coupled with superior wear characteristics, ceramic grade inserts allow operation at cutting speeds that are five to 10 times faster than carbide inserts, which improves productivity dramatically.
Sandvik coromant has developed a number of ceramic grades for a range of tasks in first-and intermediate-stage machining operations. The company's CC670 has proven itself a very effective insert for heavy roughing applications in first-stage machining. For subsequent machining operations in the semi-roughing area, Sandvik Coromant is introducing two additional grades, CC6065 and CC6060, which complement CC670. CC6065 is considered the first choice of insert grade for operations where extra edge-line security is needed. It affords a secure and predictable performance in all applications and is an economic alternative to whisker ceramics in intermediate-stage machining. The CC6065 is also suitable for milling. CC6060 is a new grade that offers excellent notch resistance, coupled with increased cutting depth, feed and cutting length. This insert grade is particularly suitable for stable conditions and demanding tailored programming techniques where the engagement angle needs to be controlled
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