Grinding Process Results with Oil Mist.

The paper presents a study of the process of grinding titanium grinding wheels with mikrokorundu, sanding at surfaces involving liquid - cooling lubricants using MQL, used machining fluid - propylene glycol and other liquids business dedicated to the administration with a minimum expenditure of the grinding zone. Were studied component of cutting forces - and tangent parameter

Damage of the Surface Layer Gears in Grinding Process.

The influence of the grinding process on the condition of the surface layer (SL) obtained by the treatment of the gear with grinding wheels Al2O3, CBN, GF, SG, alloy steels with different parameters of the grinding process and the type of cooling liquid – lubricant (CLL). The stress distribution at the surface layer, structural changes, secondary hardening, forgiveness SL and drastic damage–microcracs have been presented in comparative studies

Application of six sigma methodology to reduce defects of a grinding process

Six Sigma is a data-driven leadership approach using specific tools and methodologies that lead to fact-based decision making. This paper deals with the application of the Six Sigma methodology in reducing defects in a fine grinding process of an automotive company in India. The DMAIC (Define–Measure–Analyse–Improve–Control) approach has been followed here to solve the underlying problem of reducing process variation and improving the process yield. This paper explores how a manufacturing process can use a systematic methodology to move towards world-class quality level. The application of the Six Sigma methodology resulted in reduction of defects in the fine grinding process from 16.6 to 1.19%. The DMAIC methodology has had a significant financial impact on the profitability of the company in terms of reduction in scrap cost, man-hour saving on rework and increased output. A saving of approximately US$2.4 million per annum was reported from this project

A progress report on the evaluation of metal cutting coolants

An intensive investigation into the grinding process was carried out in The College of Aeronautics Machine Tools Laboratory during 1955-6. The outcome of this work was a method of evaluating the efficiency of grinding wheel specifications. Briefly, this consists of holding all other conditions constant and changing the grinding wheel specification from the grinding tests made then the rate of grinding wheel wear and the maximum metal removal rate is ascertained. This data may be used to compare one specification to another. The method has been used to select the best wheel specification for a wide range of materials, especially the more difficult machinable alloys examples being the stainless steel and the alloys intended for use at high temperatures. During the ten years since 1956 the method has been further developed by retaining the grinding wheel specification constant and varying the work piece material to determine the grinding machinability of alloys, and also a much more valuable criteria of the grinding process - the efficiency of coolants when used in the grinding process. This work on coolant evaluation has received detailed and extensive attention. The results of tests carried out on more than 300 coolant samples ranging from oil based and water soluble coolants with varying percentages of addative has revealed that the coolant can increase the life of the grinding wheel face by 10 times. All results found from the method of evaluation are expressed in terms of maximum metal removal rate and volume of metal which may be removed at maximum rate

The Analysis of the Cutting Forces and Surface Layer Stereometry in the Grinding Process of Abrasion-Resisting Materials

The article presents the investigation of the grinding process of flat samples made of materials that meet requirements of the lowest abrasibility, which belong to difficult to machine materials. Research enclosed measurement of cutting forces and surface layer stereometry during grinding without using cutting fluid. The tests were carried out with the aid of new generation grinding wheel, Quantum

Investigation of the grinding process to the development of grinding wheelhead semiautomatic

Анотація до магістерської роботи Мусія В.Я.Досліджено процес шліфування, та оптимізовано режим шліфування, на основі нових закономірностей між режимами обробки і якістю поверхневого шар

Thermal analysis of the grinding process

A two-dimensional mathematical model for the thermal aspects of a grinding process is presented. The model includes heat conduction in the grinding wheel, workpiece, and coolant. The heat generation through friction, heat loss to the environment as well as debris, and the interaction among the three components are described in detail. A finite-element algorithm is implemented to solve the nonlinear problem. Numerical results, such as temperatures in the grinding wheel and workpiece, are presented