Papers by Keyword: Processing Technology

Abstract: The quality of the turbocharger is made up of parts material and the machining precision of parts and assembly precision, etc. Turbocharger manufacturing areas concentrated production and standardization is the foundation of product scale and diversification. Parts of standardized production is a key link in the process to ensure product quality. The relationship between the parts production enterprises is parallel relationship. Key parts machining and parts material is the main content of the core enterprise research. Sharing of technical information between enterprises and the market demand information. The core enterprise to assembly as the main mode of production. Parts machining accuracy control is done by manufacturing companies. The core enterprise in the processing of parts to participate in the inspection and supervision. Process control into the whole process of quality control.

Abstract: Through the process of NC machining analysis, summed up the points of NC machining process analysis, through the process of a comprehensive and reasonable analysis procedure for CNC turning and CNC programming formulation provides an important basis and guarantee, so as to improve the machining quality and the machining accuracy requirements.

Abstract: Biological invasions caused by Ballast water is always one of the diffcult problems of marine environmental protection, and the technology of ballast water treatment is an effective way to solve biological invasion. This article introduce many equipments of ballast water treatment, introduce physical ballast water treatment, chemical treatment and comprehensive treatment, then describes the advantages and disadvantages of these metheods.

Abstract: Lots of hole machining in CFRP(carbon fiber reinforced plastics) are conducted in the astronautic fields, especially a large size hole machining. The purpose of this article is to investigate the optimal cutting parameters and allowance distribution in CFRP 18/32inch hole machining by thoroughly considering the cutting forces and burr length. All tests were run without coolant using different drills, expanding drills and reamers. The damage generated and the cutting forces produced in CFRP composites cutting were observed. Therefore, the optimal allowance distribution in CFRP large size hole machining was obtained, providing compound tools design with theoretical direction.

Abstract: During the casting of expendable pattern complex parts, the pattern accuracy is the key in determining the quality of expendable pattern. The paper conducts research on 5-axis CNC processing technology of multiple axes rotary spindle head expendable pattern, which is applied in processing experiments of complex parts expendable pattern. The results show that it is feasible to directly process expendable pattern with 5-axis CNC machine technology, which will have good promotional value.

Abstract: The processing technology of turbocharger impeller shaft involves shaft processing and Impeller processing two aspects of content. The design of casting impeller’s processing technology is based on reducing metal removal of the impeller dynamic balance. Casting impeller is an efficient method for the production of impellers, the dynamic balance of precision casting impeller itself can be used to achieve the use requirement of the impeller. It can meet the requirement of dynamic balance as the impeller rotation when the axis of impeller’s symmetry axis as locating datum in the process of machining. It means reduced the metal removal of dynamic balance. We Put the impeller axis symmetry as the processing benchmark, and then design a processing method of shaft and impeller. It can ensure concentricity of the two shafts when implement the processing technology of shaft and impeller after welding. At the same time achieve the requirements of the minimum Metal removal of Impeller shaft dynamic balance.

Abstract: The ball screw shaft part of the shaft is typical of one of the parts is difficult to process, the current CNC machining parts with high precision is required to solve such a circular arc surface, the most effective processing tapered threaded surface and the cylindrical surface methods. Aiming at the characteristics of round threaded shaft, analyzed the methods and procedures CNC lathe machining parts, and gives a complete NC program. Program is produced in Dalian CKA6132 CNC lathe written.

Abstract: Additional power head with common milling machine.Two and a half axis CNC system are used for CNC grinding circular surface curve trajectory. The advantages of this processing method are: We can avoid the influence on processing of lead screw clearance because of changing the parts clamping position,effectively ensure the integrity of the great circle arc curve trajectory. Because of using digital control technology in grinding process is instantaneous automatic compensation of grinding wheel wear, the machining accuracy of parts in outline is improved, the machining error is decreased. it will effectively ensure the consistency of the large circle curve precision.This method has the effect of infer other things from one fact for CNC grinding of large circular arc curve parts. Broaden the scope of application of CNC technology and practical.

Abstract: A large number of waste oil and sludge were generated during mining and processing. Untreated Sludge directly discharged into environment will lead to critical human health harm and serious environment pollution. As one of the petrochemical process major pollutants, treatment of oil sludge processing, at home and abroad, has been trying to study. Summary of development status and prospect research of oil sludge treatment technology, combining characteristics of the oily sludge, in domestic and foreign were made in this article.

Abstract: The passage analyzed the influence factors of dynamic balance of the turbocharger rotor. According to the structure of turbo rotor components and compressor impeller, the article proposes the matching process of impeller shaft and the selection of equipment model and expounds the importance of rotor dynamic balance. The working principles of two models of whole dynamic balancing machine are comparative analyzed, so as to provide a selection for processing choice.