Cutting Force and Energy Requirement of 'Bogazkere' Grape (Vitis Vinifera L) Cane

Abstract

In this study, cutting and energy properties of canes of 'Bogazkere' grape variety (Vitis vinifera L. cv.) were determined at spring pruning season in 2018. Cutting and energy properties were measured by the biological materials testing machine. According to test results, the best and lowest cutting force, cutting strength, cutting energy and specific cutting energy results were obtained at type of flat-edge knife as 263.50 N, 9.34 MPa, 2.70 J and 0.1056 J mm(-2), respectively. The highest values of cutting force, cutting strength, cutting energy and specific cutting energy were obtained from the serrated 1(knife-edge thick) type knife as 440.5 N, 15.59 MPa, 3.57 J and 0.1264 J mm(-2), respectively. Measured these properties gradually decreased with increase knife-cutting angle from 0 degrees to 40 degrees. Also, the cutting force, cutting strength, cutting energy and specific cutting energy decreased with increase knife-cutting speed from 1 mm s(-1) to 5 mm s(-1). There were found significant differences between 1 m s(-1) and the other cutting speeds. However, there were not significant different among 2, 3, 4 and 5 mm s(-1) loading speed as statistically.