EFFECT OF MULTILAYER PROTECTIVE COATING ON THE THERMAL FIELD DYNAMICS IN THE CUTTING TOOL DURING MACHINING

2020 ◽  
Vol 24 (1) ◽  
pp. 81-90
Author(s):  
Alexander Goncharov ◽  
Andrei Yunda ◽  
Evgenii Mironenko ◽  
Liudmila Vasilyeva ◽  
Dmitrii Belous
Keyword(s):  
Protective Coating ◽  
Thermal Field ◽  
Cutting Tool

The Chatterbox: A Device for Hearing Chatter as Sections are Cut

1973 ◽  
Vol 31 ◽  
pp. 360-361
Author(s):  
C. W. McCutchen ◽  
Lois W. Tice
Keyword(s):  
Machine Tools ◽  
Cutting Tool ◽  
Guerilla Warfare ◽  
History Of ◽  
Chatter Marks

Ultramicrotomists live in a state of guerilla warfare with chatter. This situation is likely to be permanent. We can infer this from the history of machine tools. If set the wrong way for the particular combination of cutting tool and material, most if not all machine tools will chatter.In more than 100 years since machine tools became common, no one has evolved a practical recipe that guarantees avoiding chatter. Rather than follow some single very conservative rule to avoid chatter in all cases, machinists detect it when it happens, and change conditions until it stops. This is possible because they have no trouble telling when their cutting tool is chattering. They can see chatter marks, and they can also hear a sometimes deafening noise.

RELATION BETWEEN COMPOSITION, MICROSTRUCTURE AND CUTTING TOOL PERFORMANCE OF ALPHA-BETA-SiALONs

1986 ◽  
Vol 47 (C1) ◽  
pp. C1-347-C1-352 ◽  
Author(s):  
N. INGELSTRÖM ◽  
T. EKSTRÖM
Keyword(s):  
Cutting Tool ◽  
Tool Performance ◽  
Alpha Beta

THERMAL FIELD DESORPTION

1989 ◽  
Vol 50 (C8) ◽  
pp. C8-9-C8-14
Author(s):  
H. J. KREUSER ◽  
L. C. WANG
Keyword(s):  
Thermal Field ◽  
Field Desorption

CAD Of Anticorrosive Protection Of Steel Structures

2019 ◽  
pp. 18-23
Keyword(s):  
Protective Coating ◽  
Computer Aided Design ◽  
Steel Structures ◽  
Cost Effective ◽  
Operating Conditions ◽  
Computational Tool ◽  
Protection Method ◽  
Cost Effective Method ◽  
The Cost ◽  
Aided Design

The choice of cost-effective method of anticorrosive protection of steel structures is an urgent and time consuming task, considering the significant number of protection ways, differing from each other in the complex of technological, physical, chemical and economic characteristics. To reduce the complexity of solving this problem, the author proposes a computational tool that can be considered as a subsystem of computer-aided design and used at the stage of variant and detailed design of steel structures. As a criterion of the effectiveness of the anti-corrosion protection method, the cost of the protective coating during the service life is accepted. The analysis of existing methods of steel protection against corrosion is performed, the possibility of their use for the protection of the most common steel structures is established, as well as the estimated period of effective operation of the coating. The developed computational tool makes it possible to choose the best method of protection of steel structures against corrosion, taking into account the operating conditions of the protected structure and the possibility of using a protective coating.

Dynamics of the processes in metal machining

1998 ◽  
Vol 2 ◽  
pp. 115-122
Author(s):  
Donatas Švitra ◽  
Jolanta Janutėnienė
Keyword(s):  
High Frequency ◽  
Machine Tools ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Low Frequency ◽  
Metal Cutting Machine ◽  
Cutting Machine ◽  
Metal Machining

In the practice of processing of metals by cutting it is necessary to overcome the vibration of the cutting tool, the processed detail and units of the machine tool. These vibrations in many cases are an obstacle to increase the productivity and quality of treatment of details on metal-cutting machine tools. Vibration at cutting of metals is a very diverse phenomenon due to both it’s nature and the form of oscillatory motion. The most general classification of vibrations at cutting is a division them into forced vibration and autovibrations. The most difficult to remove and poorly investigated are the autovibrations, i.e. vibrations arising at the absence of external periodic forces. The autovibrations, stipulated by the process of cutting on metalcutting machine are of two types: the low-frequency autovibrations and high-frequency autovibrations. When the low-frequency autovibration there appear, the cutting process ought to be terminated and the cause of the vibrations eliminated. Otherwise, there is a danger of a break of both machine and tool. In the case of high-frequency vibration the machine operates apparently quiently, but the processed surface feature small-sized roughness. The frequency of autovibrations can reach 5000 Hz and more.

Periphyton Development on the Protective Coating, Modifiedby the Cation Biocide

2020 ◽  
Vol 56 (1) ◽  
pp. 57-69
Author(s):  
S. P. Rogalskiy ◽  
I. A. Morozovskaya ◽  
M. A. Boretskaya ◽  
T. V. Cherniavskaya ◽  
O. P. Tarasiuk ◽  
...  
Keyword(s):  
Protective Coating
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