Analisis Komposisi Kimia, Struktur Mikro, Dan Kekerasan Bahan Pahat Karbida

Lisya Arulian Ramelan, Ir. Mudjijana, M. Eng.

2007 | Skripsi | S1 TEKNIK MESIN

Penelitian ini bertujuan untuk mengetahui komposisi kimia, struktur mikro dan kekerasan bahan pahat karbida._ Seiring pisatnya perkembangan teknorogi, kebutuhan akan penggunaan mesin cNC juga semakin berkembang. o-reh karena -itu t"r.n.r,"gi tertang cNC dan komponennya selaru dipelajari untuk mendapatkan peningkatJn efisiensi dalanr proses produksi. Variabel penelitian adarah 3.pahat yang sudah digunakan dibandingkan dengan pahat yang belum digunakan, disebabkan pahat yang sudah dipakai lebih kerl dari piat lrtc!^"1H1 digunakan mal

This study aims to determine the chemical composition, microstructure, and hardness of carbide cutting tools. As technology advances, the need for CNC machining is also growing. Therefore, CNC and its components are constantly being studied to improve production efficiency. The research variables are used cutting tools compared to unused cutting tools. This is because used cutting tools are harder than unused cutting tools. The used cutting tools are treated with varying temperatures of 400°C, 160°C, and 100°C. Scanning Electron Microscope (SEM) tests were also conducted to determine the chemical composition of the carbide cutting tools, as well as metallographic and Vickers hardness tests. Hello! Scanning Electron Microscope (SEM) research shows that the base metal of the carbide tool is tungsten clad with 69% N and approximately 21% N. Metallographic testing reveals a mertensite and austenite structure. The results of the research show that the average hardness of the unused tool (VHN) is 100.97 kg/mm2, and the average hardness of the used tool is 965.4 kg/mm2. For the carbide tool, the average hardness is 1446.9 kg/mm2. This is 1374.6 kg/mm2. hot For 6b0rc treatment VHN oanas the average is 1575.7 kg/mm2,

Kata Kunci : Pahat karbido, Scanning Electron Microscope, kekerasan vickers