ホブ用硬質材料に関する基礎的研究

概要

論文の詳細を見る
In hobbing, cemented carbide hobs and cermet hobs are used because of their high productivity and high precision of grears. It is a problem, however, that chipping occurs at the cutting edges of these materials. In order to develop a hob material which decreases wear and chipping, the influence of composition, hardness, and transverse rupture strength (TRS) of the hob on flank wear, crater wear and surface roughness was investigated in this paper. Experiments were carried out with a single fly tool. A cemented carbide tool containing 72%WC and 18% (TiC+TaC), and having 91 HR_A in hardness and 2300 N/mm^2 in TRS performed best with respect to flank wear and crater wear. A cermet tool containing 43%TiC, and 91 HR_A hardness and 1700 N/mm^2 TRS is effective in decreasing flank wear and finished surface roughness.
一般社団法人日本機械学会の論文
1993-03-25