scholarly journals POPPERATIONAL CHANGE OF SURFACE LAYER QUALITY OF STEEL PARTS AFTER DIFFERENT MECHANICAL PROCESSING METHODS

Author(s):  
Aydin M. Gafarov ◽  
◽  
Chingiz M. Aliyev ◽  
Alimardan M. Guliyev ◽  
◽  
...  
Author(s):  
Вячеслав Безъязычный ◽  
Vyacheslav Bezyazychnyy ◽  
Максим Басков ◽  
Maksim Baskov

The impact of cutter wear-resistant coatings upon cutting process parameters and characteristics of surface layer quality in the parts worked: residual stresses, a degree and a depth of work hardening of a surface layer, surface roughness is investigated.


Author(s):  
Андрей Киричек ◽  
Andrey Kirichek ◽  
Дмитрий Соловьев ◽  
Dmitriy Solovyev ◽  
Александр Хандожко ◽  
...  

The problems of analyzing metallographic images and the method of their solution using modern software for the analysis of metallographic images are described. There is given an analysis of microstructure images as the main indicator of the surface layer quality by the example of studying the research results of strain wave hardening combinations and chemical-thermal treatment, in particular the influence of previous strain wave hardening and subsequent thermal and chemical- thermal treatment on the alloy steel microstructure or previous thermal and chemical- thermal treatment and subsequent strain wave hardening. On the basis of the analysis the effectiveness of strain wave hardening and chemical and thermal treatment is established.


1981 ◽  
Vol 17 (1) ◽  
pp. 91-93
Author(s):  
P. A. Rutman ◽  
N. V. Pertsov ◽  
V. S. Lobantsova

Author(s):  
В. Полетаев ◽  
V. Poletaev ◽  
Е. Цветков ◽  
E. Tsvetko

The investigation results of technological conditions impact at multiaxes deep grinding upon quality of titanium alloy blade surface layer in the compressors of gas turbine engines (GTE) are presented. The grinding mode impact upon a surface and a value of residual stresses in a surface layer of blades is defined and also conditions for defect occurrence as burns on blade surfaces under machining are detected.


2018 ◽  
Vol 49 ◽  
pp. 02002
Author(s):  
Patrick Munyensanga ◽  
Susilo A. Widyanto ◽  
Moh N.A. Aziz ◽  
Paryanto

Nickel electroplating process at UD Barito Electroplating is a modern methodology installed in an open complex environment and at controlled temperature with trust consideration of specimen composition. The evaluation of process at UD Barito has been undertaken by considering Stainless steel AISI 316L as specimen through a conventional nickel electroplating process. This paper presents the proper scientifically tool to be used at UD Barito in order to meet the time required and the surface layer quality of the electroplated product. The use of ultrasonic to replace air compressor assembly does not cause any harm to the surface finish smoothness and the quality of plated specimen given that the process is conventional. Concerning the process of 10 min compared up to 15 min of the process at UD Barito; showed the facility of ultrasonic assisted the electroplating process. This process is also a useful method in maintenance activities for surface cleaning and for product surface-layer quality enhancement through the coating process. From the data analyzed, the specimen has a hydrogen embrittlement rate range between 20 to 65% of Rockwell scale HRC52.


2021 ◽  
Vol 346 ◽  
pp. 01029
Author(s):  
Vasily Gritsyuk ◽  
Evgeny Smolentsev ◽  
Dmitriy Krokhin ◽  
Aleksandr Pechagin

This article discusses development of technological modes and the process of stabilizing the properties of surface layers of large-sized parts, ensuring accuracy and stability of the products’ shape during their manufacture and operation, while using combined processing methods that replace costly heat treatment at mechanical engineering enterprises.


2019 ◽  
Vol 23 (6) ◽  
pp. 1104-1115
Author(s):  
Nikolay Ulakhanov ◽  
◽  
Undrakh Mishigdorzhiyn ◽  
Anatoly Greshilov ◽  
Alexander Tikhonov ◽  
...  

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