Open AccessStudying the process of electric discharge machining of products obtained by powder laser welding
Author(s) -
Е. С. Шлыков,
Timur Ablyaz,
K. R. Muratov,
Sarabjeet Singh Sidhu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/971/2/022064
Subject(s) - materials science , machining , brass , surface roughness , mechanical engineering , electrical discharge machining , welding , surface finish , process (computing) , operability , design of experiments , metallurgy , electric discharge , electrode , engineering drawing , composite material , computer science , engineering , copper , statistics , chemistry , mathematics , software engineering , operating system
In modern mechanical engineering, machine parts and mechanisms are made of new materials. These materials are characterized by enhanced mechanical properties. Expensive are products made from them. Deterioration of working surfaces leads to the need to replace the entire part. About 80% of the part is not subject to wear. The method of laser surfacing allows you to restore the part. The operability of the mechanism is returned. Cost-effectiveness is increasing. The processing of deposited surfaces is difficult. The properties of mechanical surfacing increases and cutting with a blade tool is not possible. Electroerosive technologies are beginning to be actively used in the processing of deposited parts. The study of the electro discharge machining (EDM) process of such details is now relevant. After EDM, the formation of the roughness of deposited surfaces has not been fully studied. The aim of the work is an experimental study of the EDM process of such surfaces. It is important to study the effect of EDM modes on the formation of roughness is important. A full factorial experiment was conducted during the study. EcoCut wire-cutting EDM machine selected as experimental equipment. Brass wire d = 0.25 mm is used as an electrode tool. The deposited material titanium VT-01 is selected for the experiment. An empirical model was obtained during the experiment. To establish the relationship between the EDM modes and the quality of the processed surface allows the model. An increase in the stress (U, mm) and the height of the workpiece (N, mm) leads to an increase in the roughness of the treated surface (Ra, μm) when processing titanium was found. The maximum roughness value for Ra = 3.3 μm is achieved at a voltage of U = 25 V, duty cycle q = 3.5, and a workpiece height of 10 mm.