Abstract. The present paper highlights the importance of a caulking process which is nowadays less studied in comparison with the growing of its usage in the automotive industry. Due to the fact that the caulking operation is used in domains with high importance such as shock absorbers and brake systems there comes the demand of this paper to detail the parameters which characterize the process, viewed as input data and output data, and the requirements asked for the final product. The paper presents the actual measurement methods used for analysis the performance of the caulking assembly. All this parameters leads to an analysis algorithm of performance established for the caulking process which it is used later in the paper for an experimental research. The study is a basis from which it will be able to go to further researches in order to optimize the following processing.
Grinding is a highly complex manufacturing process due to the stochastic nature of the active zone (composed of grains, binder, and pores) and, because of the large numbers of parameters, it influences the surface quality and material removal rate, which are the two main goals of this process.An important grinding application is the sharpening of cemented carbide cutting tools. Additional features of these processes compared to other types of grinding are the following: the small surfaces to be processed, which have many edges; high surface quality; small production series; different depths of cut; and specific mechanical properties of the cemented carbides used for cutting tools. The application is important because the quality of the clearance and relief surfaces (of the cutting tool) is important for the precision of the manufactured surface and the tool life of the cutting tool.The research focused on DK460UF tungsten carbide that consists of 91 % WC and 9 % Co. It is the main material used in twist drills, gun drills, end mills, etc.The aim of this study was to determine the optimum manufacturing parameters that lead to the desired surface quality. STATE OF THE ARTGiven its importance, the grinding process has been the subject of many investigations. In his book [1], Shaw presents the first grinding models developed in the 1990s.Currently, a large range of models are being developed. Some of them are physically focused. In this category, we include the fundamental analytical models, the kinematic, finite element method, regression and molecular dynamics. Empirical process models include regression and artificial neural models. The last category comprises the rule base models, which are heuristic [2].Kinematic models explain the grinding mechanisms, the parameters involved in this process, and their interdependence. Fig. 1 shows an original cumulative model of the main elements influencing the grinding process and the logical interaction between them. Grinding Tungsten Carbide Used for Manufacturing Gun Drills
The paper consists in a research in the design of an innovative face-milling cutter, in terms of product lifecycle management (PLM), with the help from creative design methods, such as TRIZ. The model of the lifecycle management of the cutting tools was presented, emphasizing the functional analysis and creative design phase. Based on this analysis, a new constructive variant of the milling cutter was designed and simulated with finite element method, highlighting its advantages compared with classic construction variants.
The paper analyzes the process of internal honing of cylindrical gears, a new and modern method of finishing the gear tooth flanks. At the beginning, the kinematics of the process is being analyzed. By realizing the state of art, we were able to identify the main features of the process, its advantages in terms of surface precision and quality, the residual stresses and the wear of the flanks compared with other finishing processes. An experimental study of the geometric precision, the shape of the flanks and the roughness for honed surfaces compared to the unfinished ones, highlighted the value and the need of this process.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.