In the milling process, the major flank wear land area (two-dimensional measurement for the wear) of a small-diameter milling cutter, as wear standard, can reflect actual changes of the wear land of the cutter.
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By analyzing the wearing characteristics of the cutter, a cutting force model based on the major flank wear land area is established.
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Much more attention has been paid to the tribo-electrochemical mechanisms for the control of friction and wear.
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Wear mechanism of disc-brake block material for new type of drilling rig
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Topography and elementary components of the brake block's wear surface are analyzed by employing SEM and EDAX patterns, revealing its tribological behaviour and wear mechanism.
The wearing angles of the travellers while running at spindle speeds between 13000-15000 r. p. m. and the depth and length of wear of rings and travellers were measured. Various type of rings and travellers were used in these tests, including anti-wedge rings and travellers made in Shanghai. The results show that the wearing angles of travellers are 14°30', 22.25' to the coordinate plane XOY, YOZ respectively. From a simple analysis of the moments acting on the traveller, the cause. of wed...
When we design or manufacture a cam more accurately, the ana-lytical method of calculation is desired. For example, by fabricationa cam the coordinate of pitch curve or centure of cutter must be de-termined; by calculation for strength and wear, the radius of curvatureof the pith curv sould be investigated. This problem has been solvedby different method, wich may be found in some literares. In thispaper the author suggest a way to establisb the systematic fotmulaswith parameters α and β. (α is pressu...
This article gives the test results of bending, wearing and contact fatigue of the teeth of the modular cast iron (QT60-2, Normalizing) gear. It also shows that normalizing QT60-2 is better than tempering steel 45 in contact endurance and anti-wear on tooth surface. The 290-690 Diesel engine gear teeth can be made from this type of cast iron in place of steel 45 with sufficient strength. A prelimanary analysis of the fatigue pitting on the tooth surface of normalizing QT60-2 gear is also made.