SUMITOMO ELECTRIC AC5000S Heat Resistant Alloy Turning Guide

AC5025S: A Powerful Tool for Heavy Intermittent Cutting

AC5025S is positioned as a heavy-duty intermittent cutting grade, with 1.5 times the anti chipping performance of conventional grades. Its application scope covers heavy intermittent cutting and unstable working conditions, especially suitable for rough machining and processing under strong impact loads. When cutting edge breakage, boundary defects, or severe crescent wear occur during processing, AC5025S is the preferred solution. In the turning of Hastelloy aviation parts, CNMG433EMU-AC5025S cutting tool was used with cutting parameters of vc=330 SFM, f=0.0118 IPR, ap=. 1181 ", resulting in a 4-fold increase in tool life. In the machining of iron-based heat-resistant alloy valve parts, WNMG432EEM-AC5025S cutting tool was used to achieve stable double tool life under the conditions of vc=300 SFM, f=. 0059 IPR, ap=. 0591 ". In the processing of high hardness steel industrial machine parts (49HRC), the CNMG433EMU-AC5025S tool can achieve the same tool life even at 1.4 times the cutting speed under dry cutting conditions of vc=1150 SFM, f=0.0063 IPR, ap=0.0591 ".

Chip groove selection and recommended cutting parameters

The AC5000S series offers a wide range of chip breaker options, allowing engineers to accurately match according to machining conditions. For precision machining conditions, EEF chip breakers are the preferred choice, suitable for small cutting depths and small feed rates, and can achieve excellent surface quality. In the precision machining of heat-resistant alloys, it is recommended to use AC5005S/AC5015S/AC5025S with EEF groove type, with a cutting depth range of 0.005-0.020 inches, a feed rate of 0.004-0.005 IPR, and a cutting speed of 160-230 SFM. For light cutting conditions, EEX chip breakers are suitable for medium cutting depths and feed rates, with a recommended cutting depth of 0.020-0.040 inches, feed rate of 0.004-0.008 IPR, and cutting speed of 130-195 SFM. For medium cutting conditions, EEG chip breakers are suitable for medium cutting depths and feed rates, with a recommended cutting depth of 0.020-0.080 inches, feed rate of 0.006-0.010 IPR, and cutting speed of 130-195 SFM. For rough machining conditions, EEM chip breakers are suitable for large cutting depths and feed rates, with a recommended cutting depth of 0.040-0.080 inches, feed rate of 0.008-0.010 IPR, and cutting speed of 95-180 SFM.

In addition, the AC5000S series also offers groove types such as ESU, EUP, EGU, EMU, ENZ, MEF, MESL, MESI, covering a full range of applications from precision machining to rough machining. ESU groove type is suitable for precision machining, EUP is suitable for light to medium cutting, EGU is suitable for medium cutting, EMU is suitable for medium to rough machining, and ENZ is suitable for precision machining to light cutting. In terms of blade shape, we provide negative angle blades such as CNMG, DNMG, SNMG, TNMG, VNMG, WNMG, as well as positive angle blades such as CCMT, DCMT, TCMT, VCMT, VBMT, WBGT, etc., to meet the machining needs of different part profiles.

Practical Case Verification: Cross industry Processing Performance Comparison

To verify the performance of the AC5000S series in actual production, we conducted in-depth analysis by combining real processing cases from multiple industries. These cases cover multiple high-end manufacturing fields such as aerospace, automotive, and industrial machinery, fully demonstrating their outstanding performance under different working conditions.

1. Inconel 718 aviation parts turning

In the turning of Inconel 718 aviation parts, CNMG432EUP-AC5005S cutting tool was used with cutting parameters of vc=150 SFM, f=0.0059 IPR, ap=. 1259 ", achieving good wear suppression and extended tool life. Compared with competitor D (S05 PVD), the cutting edge of AC5005S remains intact after processing, while competitor D exhibits obvious boundary defects and chipping. For applications such as aviation parts that require high safety and reliability, the stability of AC5005S can ensure consistent processing quality.

2. Turning of high hardness steel industrial machine parts (50-55HRC)

When processing high hardness steel industrial machine parts with a hardness of 50-55HRC, the SNMG433EGU-AC5005S tool was used with cutting parameters of vc=170 SFM, f=0.0105 IPR, ap=0.0551 ", achieving good wear resistance, shortening processing time by 13%, and extending tool life. Compared with its competitor E (S05 PVD), AC5005S has less wear on the cutting surface and more complete cutting edges after machining. For difficult to machine materials such as high hardness steel, the heat-resistant matrix of AC5005S can effectively resist high-temperature plastic deformation and ensure machining dimensional accuracy.

3. Turning of 15-5 PH stainless steel aviation parts

In the turning of 15-5 PH stainless steel aviation parts, CNMG433EME-AC5005S cutting tool was used with cutting parameters of vc=180 SFM, f=. 0142 IPR, ap=. 0984 ", achieving a 66% reduction in machining time and a 1.5 times increase in tool life. Compared with competitor G (S05 PVD), AC5005S remained stable after processing 3 pieces, while competitor G only experienced wear after processing 2 pieces. For precipitation hardening stainless steel such as 15-5 PH stainless steel, the high temperature strength and wear resistance of AC5005S can effectively cope with the work hardening tendency.