Mingde Zhang's research while affiliated with Chongqing University of Technology and other places

... Hsu et al. [31] used gear shaving to provide twist-free profile and lead crowning of helical gears by using a variable pressure angle shaving cutter. Zheng et al. [32] used gear skiving process for flank modifications of the helical gears by the cutter tilted correction, cutter offset correction, and crossed angle correction methods. They investigated the influence of modification parameters on tooth surface deviation, contact pattern, and transmission error and concluded that the cutter offset correction method caused less twist error in the crowned gears. ...

... This paper proposes a path planning method for robot grinding based on automatic recognition of random features, which includes: (1) Automatic extraction of random forging features based on point cloud matching;(2) Classification of grinding characteristics considering defect size; (3) Consideration of three key steps such as robot grinding path planning for the grinding process, as shown in Figure 2. it has invariance [27].To calculate FPFH, it is necessary to first take i p as the coordinate origin, establish the local coordinate system, and define the normal deviation parameters  ,  ,  : ...

... A seven-axes and six-linkage adaptive abrasive belt grinding machine tool was developed and belt grinding experiments of the pure industrial iron specimens were carried out [31], and also, the physical model for the blisk-blade abrasive belt grinding was built and the grinding vibration mechanism and process parameter optimization for the blisk-blade abrasive belt grinding were investigated [32]. A grinding machine tool was designed and the abrasive belt grinding experiment for blisk specimens was conducted in a thirteen axes computer numerical control abrasive belt grinding machine [33]. A belt grinding mechanism was proposed and several grinding experiments for an aero-engine fan blade were carried out on a five-axis belt grinding machine with flexible grinding mechanism [34]. ...

... In the field of gear design, tooth surface modification is utilized to fine-tune the tooth profile with the aim of improving meshing quality, reducing noise, minimizing vibration, and counteracting processing errors [26][27][28]. Similar to processing error compensation technology based on NC code, the essence of tooth deviation correction is to make the actual tooth surface deviate from the ideal tooth surface to achieve the predictive effects. ...

... This is particularly concerning in the current landscape where machine loads are progressively increasing, leading to immediate loading of the middle tooth region subsequent to the engagement of the top and root areas. The resulting spike in contact stress can not only accelerate surface wear and reduce the operational lifespan but also decrease the efficiency of gear drives [18][19][20][21][22][23][24]. ...

... Denkena et al. [55] combined a surface roughness prediction model based on machining kinematics theory with an empirical model simulating random deviations to obtain a semiempirical prediction model for surface roughness. Zheng et al. [56] studied the kinematics of spiral bevel gear machining and established a theoretical model for predicting the surface roughness of spiral bevel gears. Franco et al. [57] established a numerical model for predicting surface roughness based on cutting parameters, tool geometry, and tool runout error and analyzed the runout error of the tool by the mathematical method of statistical analysis to determine the surface roughness based on the change in insert runout error. ...

... The impact of cracks was assessed using fault detection indices, root mean square (RMS) values, kurtosis, and crest factors. Zheng et al. [2] introduced a quadruple linkage shaping method, which employs the coordinated movement of four cutter axes to shape gears. This approach begins with the establishment of a mathematical model, followed by an analysis of the cutting process, and culminates in experiments demonstrating the method's effectiveness. ...

... Bu yay biçimli diş formu daha yüksek temas oranına sahip ve helisel dairesel olmayan dişlilere kıyasla daha küçük eksenel kuvvet oluşturduğunu tespit edilmiştir. Bununla birlikte, yeni tip dairesel olmayan dişli çiftlerinin çalışma esnasında, diş profillerinin iç bükey kısmında yağı tutabilme özelliği ile daha fazla yağlama yaptığı çalışmada vurgulanmıştır[34].Literatürde eliptik dişlilerin azdırma tezgahında imalatları ile ilgili yapılan çalışmalar yer almaktadır. Eliptik dişlilerin azdırma tezgâhında imalatı sırasında meydana gelen bağlantı modelleri ve azdırma frezesinin talaş derinliğine doğru hareketi tarafından üretilen ek hareketi üzerine araştırmalara rastlanılmıştır. ...

... Most gears are made of carbon and low alloys steels, including steels for surface hardening, but a limited number of steels respond favorably to nitriding [2,27]. Currently, many gears are machined from forged blanks that have been processed to provide a favorable grain flow consistent with the load pattern, rather than being machined directly from rolled bars [2,[28][29][30][31]. ...

... Many papers have been found regarding the algorithms of contact analysis and adjustment [8,9,10,11,12,13,14,15,16]. The CNC machine with high-order machine parameters is also widely used in actual production [17,18]. It is evident that the forming principle, tooth surface design, and CNC machining technology of face hobbing have been well developed. ...