Analysis of Effects of Cutting Angle Variation and Hardening Heat Treatment on the Damage Characteristics of Bamboo Splitting Blades

Bamboo is a renewable material widely utilized in industrial applications, where efficient processing requires splitting blades with high durability and wear resistance. The effects of cutting angle variation and hardening heat treatment on the damage characteristics of bamboo splitting blades were investigated through an experimental approach using AISI 1040 medium-carbon steel. Blade specimens with cutting angles of 35°, 40°, and 45° were subjected to hardening at 820 °C for 5 min. Material hardness was determined using the Brinell Hardness Test, while blade damage was characterized using a profile projector. The results showed that blade damage increased with the number of bamboo splitting cycles. Among the tested configurations, the 35° cutting angle combined with hardening heat treatment exhibited the highest resistance to damage, indicating improved blade durability for bamboo splitting applications.