Experimental eva‎luation of machining parameters in order to increase the turning ability of steel 1.1151(CK22)

12/2/2025 12:00:00 AM

Low carbon steel 1.1151 (CK22) is widely used in various industries such as petrochemical, oil, automotive, etc. and is converted into a finished part and consumed by performing various production operations such as machining. Depending on the location of use, the semi-finished production process (thick-walled tube) performed by cold drawing increases the yield stress and poses a challenge to the machining operation of the part when using CVD-coated cemented carbide cutting tools. In this thesis, the improvement of machining parameters was investigated with the aim of increasing the life of the cutting tool. The required data was obtained through experimental tests for different values of cutting speed and feed rate, and output parameters such as cutting tool wear, workpiece surface roughness, and chip shape were analyzed. The results of the investigations and implementation of the improvement operations showed that the improved values for the cutting speed are 288 m/min and the feed rate is 0.15 mm/rev. Under these conditions, the cutting tool life increased from 181 to 303 pieces, representing an improvement of 67.4%. Re-running the experiments with optimized parameters provided similar results, confirming the validity of the research findings.

فولاد كم كربن1.1151 , عمر ابزار , زبري سطح , شكل براده

Low carbon steel 1.1151 , Tool life , Surface roughness , Chip shape

Ali Mohammadzadeh

Behnam Davoodi