A Study on the Influence of Plasma Nitriding Technology Parameters on the Working Surface Deformation of Hypoid Gears

Abstract

This paper presents the results of the research on the influence of plasma nitriding technology parameters on the working surface deformation of hypoid gears. Blue light technology with non-contact measuring devices is used to determine the working surface deformation of hypoid gears after plasma nitriding. The study has determined a regression equation showing the influence of plasma nitriding technology parameters on the deformation of the working surface of the hypoid gear. The minimum deformation optimization value at the planning area is 0.0071746 at permeation temperature TL=4.89oC, permeation time h=510h, and gas flow 1 G1=6.02L/h.

Prediction of the Adhesion Strength of Coating in Plasma Spray Deposition

“…According to [3], in addition to substrate hardness, particle velocity and spray angle can influence deformation behavior and the ultimate state of the oxide film. The equation in [1] justifying the role of the critical velocity (Vcr) as the condition governing the feasibility of bonding was impacted by a rise in the local temperature beyond the melting point. 667 14 0.08 0.1 0.4…”

“…Plasma spray deposition is an additive manufacturing technology whose application range extends beyond the traditional thermal spraying approach, including the plasma spraying approach, which relies heavily on melting. The plasma energy encourages the nitriding process to modify the structure and mechanical properties of the surface, but the temperature and chemical process prevail [1]. Many engineers and researchers have worked to produce thermal spray technology without melting, and the velocity of the particles is the primary driver in creating the deposition.…”

Optimization of Technological Parameters when Plasma Nitriding the Gear Working Surface

“…This ion bombardment heats, cleans, and forms a hard layer with good wear resistance, increasing fatigue strength [7]. In recent years, many studies have been conducted on the nitriding process model, but it is generally not enough to predict the influence of the parameters on the quality of the permeable layer [3][4][5][9][10][11][12][13].…”

“…As the plasma power increases, the maximum adhesion values change, reaching 80MPa when the plasma power approaches 80kW [11]. In [12], the influence of plasma nitriding technology parameters on the deformation of hypoid gears was investigated, using blue light technology with a non-contact measuring device to determine the deformation after plasma nitriding.…”

“…There is a lack of studies on plasma nitriding for parts made of 18XГT alloy steel (equivalent to SAE 5120) [2,6,12,17]. This study used an ELTROPUL permeation furnace with a premade plasma pulse source with stable plasma flow in all cases and easily penetrating details with complex geometries.…”