as well as process development adjusted to the respective machining task. Machining of new high-strength materials places continuously increasing challenges on cutting technology. Using hybrid pro-cesses, existing technological process limits can be extended by combining additional sources of energy and conventional existing machining processes.
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Fig. 1 elucidates the principle on which hybrid micro-EDM and precision grinding is based. Fig. 1(a) presents the configuration of micro-EDMG process and the micro-tool.The debris is expelled from the machining region by the dielectric fluid, and special helical groove on tool electrode is designed as chip pocket and transportation guide way.
In 2010, CIRP, namely the International Academy for Production Engineering, refined these definitions and proposed an open and a narrow definition [7, 8]: (i) Open definition: a hybrid manufacturing process combines two or more established manufacturing processes into a new combined set-up whereby the advantages of each discrete process can be …
The VHybrid 360 grinding and electrical discharge machining (EDM) erosion machine can process solid carbide or polycrystalline diamond (PCD) tools such as drills, milling cutters, or reamers in one setup. Two vertical spindles in the C-axis pivot point allow high profile accuracy, and the shorter linear-axis travel reduces machining times.
Abstract. This book describes various hybrid machining and finishing processes. It gives a critical review of the past work based on them as well as the current trends and research directions. For ...
the performance characteristics of a hybrid process are considerably different from those of the single-phase processes in terms of productivity, accuracy, and surface quality depending on the major machining phase involved in the material removal, hybrid machining can be classified into hybrid chemical and electrochemical processes and hybrid …
according to schuh et al. [175], "hybrid" can have several meanings: (1) combination of different active energy sources which act at the same time in the processing zone (e.g. laser assisted turning); (2) processes which combine process steps that are usually performed in two or more process steps (e.g. integration of component …
According to the characteristics of grinding process and accuracy requirements of technical indicators, a hybrid multiple soft-sensor modeling method of grinding granularity is proposed based on cuckoo searching (CS) algorithm and hysteresis switching (HS) strategy. Firstly, a mechanism soft-sensor model of grinding granularity is deduced based on the technique …
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In this family of hybrid machining processes, the major material removal phase is either CD or ECD. Such a machining action can be combined with the thermal assistance by local heating in case of laser-assisted electrochemical machining (ECML). In other words, the introduction of the mechanical abrasion action assists the ECD machining phase during electrochemical …
Hybrid Resins grind almost as aggressively as metal bond diamonds, however the scratch pattern is less aggressive. ... Made with Blue Star Diamond Technology™, the BSD is designed as a ceramic diamond grinding process to follow the metal bond process. The result of this diamond is a superior floor with reduced steps Product Features Reduces ...
Optimization for the surface grinding process is a problem with high complexity and nonlinearity. Hence, evolutionary algorithms are needed to apply to get the optimum solution of the problem instead of the traditional optimization algorithms. In this work, a hybrid particle swarm optimization (HPSO) algorithm which combines the dynamic neighborhood particle …
The actual contact force between grinding head and workpiece in the whole grinding process is collected and analyzed. The sampling period of force sensor is 5 ms. On the experimental platform described in Table 9, the performance of the macro micro force position hybrid control method in the grinding process is verified. The effectiveness of ...
Abstract The recent paper proposes a hybrid micro-grinding process for ultra-precision meso/micro components of monocrystalline silicon manufacturing. The proposed technique utilizes the chemical...
Industrial grinding processes always involve multiple sequential passes, such as rough, semi-rough, semi-finish, finish, and spark-out, for the surface and geometrical accuracy generation. The design of multi-pass grinding process parameters usually requires in-depth heuristic knowledge or complex process modeling. However, when multiple process output …
Due to the integrated complexities of grinding process (strong nonlinearity, unknown mechanisms, multivariable, time varying parameters, etc.), a hybrid intelligent dynamic model is presented in ...
In this family of hybrid machining processes, the major material removal phase is either CD or ECD. Such a machining action can be combined with the thermal assistance by local heating in case of laser-assisted electrochemical …
NON-TRADITIONAL MACHINING. Hybrid Electrochemical Processes SURFACE ECG SURFACE ECG • Electrochemical grinding (ECG) utilizes a negatively charged abrasive grinding wheel, electrolyte solution, and a positively charged workpiece. • The process is, therefore, similar to ECM except that the cathode is a specially constructed grinding wheel …
positive effect of the hybrid process is more than the double of the advantages of the single processes. Hybrid can have several meanings: (1) combination of different active energy sources which act at the same time in the processing zone (e.g. laser assisted turning); (2) processes which combine process steps that are usually performed in two ...
Abstract. In this paper a definition and classification of hybrid processes is given with the focus on assisted hybrid machining processes developed at the Faculty of Mechanical Engineering in ...
The hybrid particle swarm optimization regards the entire grinding process parameters (from rough grinding, semi-finish grinding, finish grinding to spark-out grinding) as a whole, and realizes the parameter optimization by considering multiple objectives and constrains. The establishment of the response surface model of surface roughness ...
Firstly, this work investigates a new design of a conformal cooling channel for injection molding tools containing serial and parallel circuits. Secondly, a hybrid-manufacturing process, combining machining and metal powder additive manufacturing, was also evaluated to manufacture molds. Specimens were manufactured by selective laser melting (SLM) using …
In this work, we present a hybrid ball mill model and a spiral classifier model for the grinding-classification process of bauxite, where the material characteristics and operation conditions are all considered. The models are useful for particle size distribution (PSD) prediction, process simulation and further optimization.
Hybrid Machining processes Hybrid production/manufacturing means the combination of processes/machines in order to produce parts in a more efficient and productive way. A general objective of hybrid manufacturing is the ''1 + 1 = 3''effect,meaning that the positive effect of the hybrid process is more than the double of the advantages ...
• Hybrid production/manufacturing means the combination of processes/machines in order to produce parts in more efficient and productive way. • A general objective of hybrid manufacturing is the "1+1=3" effect, meaning that the positive effect of the hybrid process is more than the double of the advantages of the single processes.
positive effect of the hybrid process is more than the double of the advantages of the single processes. Hybrid can have several meanings: (1) combination of different active energy sources which act at the same time in the processing zone (e.g. laser assisted turning); (2) processes which combine process steps that are usually performed in two or more
Abstract. We present recent advances in the modelling and simulation of Internal Tra-verse Grinding, a high performance grinding process incorporating a high rate of material removal combined with ...
penetration of a single cBN grain on a meso-scale during the machining process. Secondly, a topography analysis procedure as well as a kinematic simulation have been developed to measure and analyse the surface topography of an actual grinding wheel. We then use this information to model the grinding wheel surface in the latter kinematic ...
Rollomatic's GrindSmart 660XW is a hybrid, 6‐axis tool and peel grinding machine that enables users to use cost‐effective and advanced lean manufacturing principles for ultralean grinding processes. The machine includes a 6‐position wheel changer and linear motors on all axes.
A case study is given to show the process development for laser-assisted grinding of Si 3 N 4 and Al 3 O 2. It concludes with a summary of future research trends on LAM. Select Chapter 4 - Vibration-Assisted Milling ... Process fundamentals are discussed for each hybrid process. At the end of the chapter, a case study on ECM-based hybrid ...
Rollomatic GrindSmart 660XW. Photo Credit: Rollomatic. Rollomatic's GrindSmart 660XW is a hybrid, 6‐axis tool and peel grinding machine that enables users to use cost‐effective and advanced lean manufacturing principles for ultralean grinding processes. The machine includes a 6‐position wheel changer and linear motors on all axes.
7.6 Rotary ultrasonic machining (RUM) Rotary ultrasonic machining (RUM) is a hybrid machining process that combines the material removal mechanisms of diamond grinding and of ultrasonic machining. Figure 7.6 illustrates the RUM process. The drilling tool is a core drill made of metal-bonded diamond abrasives.