In the present investigation, an attempt was made to facilitate tool condition monitoring system on cryogenic treated using fuzzy logic and signal processing. Cryogenic treatment is carried out at -196°C for 48 h...In the present investigation, an attempt was made to facilitate tool condition monitoring system on cryogenic treated using fuzzy logic and signal processing. Cryogenic treatment is carried out at -196°C for 48 hours followed on tempering at 200°C for 2 hours. The AISI4340 steel is machined with cryogenically treated inserts. Speed, feed and depth of cut are selected as input parameters. The results of the proposed method are encouraged in minimizing tool vibration, flank and crater wear. Good correlation is shown between the neural fuzzy and experimental data. As a result, it is found that cryogenically treated inserts have superior tool wear and vibration resistance, and confirmed by conducting further confirmation tests.展开更多
This work aims to study the springback behaviour of electrogalvanised (EG) steel sheets during the air bending process.Experiments have been conducted to analyse the influence of various parameters such as coating thi...This work aims to study the springback behaviour of electrogalvanised (EG) steel sheets during the air bending process.Experiments have been conducted to analyse the influence of various parameters such as coating thickness,orientation of the sheet,punch radius,die radius,die opening,punch velocity,and punch travel on springback behaviour.It is established that the springback increases with increasing coating thickness,punch radius,punch travel,die radius,die opening,and punch velocity.The 90° orientation exhibits higher springback than 0° orientation.展开更多
文摘In the present investigation, an attempt was made to facilitate tool condition monitoring system on cryogenic treated using fuzzy logic and signal processing. Cryogenic treatment is carried out at -196°C for 48 hours followed on tempering at 200°C for 2 hours. The AISI4340 steel is machined with cryogenically treated inserts. Speed, feed and depth of cut are selected as input parameters. The results of the proposed method are encouraged in minimizing tool vibration, flank and crater wear. Good correlation is shown between the neural fuzzy and experimental data. As a result, it is found that cryogenically treated inserts have superior tool wear and vibration resistance, and confirmed by conducting further confirmation tests.
文摘This work aims to study the springback behaviour of electrogalvanised (EG) steel sheets during the air bending process.Experiments have been conducted to analyse the influence of various parameters such as coating thickness,orientation of the sheet,punch radius,die radius,die opening,punch velocity,and punch travel on springback behaviour.It is established that the springback increases with increasing coating thickness,punch radius,punch travel,die radius,die opening,and punch velocity.The 90° orientation exhibits higher springback than 0° orientation.
