ELECTRICAL DISCHARGE DIAMOND GRINDING OF HIGH SPEED STEEL

1999 ◽  
Vol 3 (1) ◽  
pp. 91-105 ◽  
Author(s):  
S. K. Choudhury ◽  
V. K. Jain ◽  
M. Gupta
2016 ◽  
Vol 861 ◽  
pp. 9-13
Author(s):  
Hong Jian Dong ◽  
Qin He Zhang ◽  
Lei Tan ◽  
Guo Wei Liu ◽  
Tuo Dang Guo

As a kind of commonly used tools, junior hacksaw plays an important role in our daily life. A new kind of bimetal band saw taken low carbon medium alloy steel X32 as the backing material and the high-speed steel M42 as the saw tooth material is developed. In this paper, a new method to machine the bimetal band saw with wire electrical discharge machining (WEDM) is introduced. The processing route for common tooth profile is calculated. The fixture with specific angles is designed with CAD software (proe5.0) and machined with 3D printing technology. The experiments show that bimetal band saw machined with WEDM method has better surface quality compared with that machined through the traditional grinding process. Without any burrs, the new bimetal band saw is more resistant to wear and has a longer service life.


2010 ◽  
Vol 159 ◽  
pp. 137-140 ◽  
Author(s):  
Dimitar Krastev ◽  
Boyan Yordanov

In this study are given some results about the influence of electrical discharge treatment in electrolyte on the microstructure of high speed steel HS 6-5-2. The metallic surface after electrical discharge treatment in electrolyte has a different structure in comparison with the metal matrix, which determines different properties. It is observed remarkable increasing of hardness, strength and corrosion resistance related to the nonequilibrium phase transformations and the obtained finecrystalline microstructure.


2019 ◽  
Vol 21 (1) ◽  
pp. 6-15
Author(s):  
Vyacheslav Popov ◽  
◽  
Daniil Rychkov ◽  
Pavel Arkhipov ◽  
Alexey Kuznetsov ◽  
...  

2011 ◽  
Vol 496 ◽  
pp. 247-252 ◽  
Author(s):  
Ruben Gil ◽  
J.A. Sánchez ◽  
N. Ortega ◽  
S. Plaza ◽  
B. Izquierdo ◽  
...  

Abstract. This paper analyses the technological capabilities of a novel rotary (EDM) electrical discharge machining process for the manufacturing of high aspect ratio cylindrical micro-components. The process is called Inverse Electrical Discharge Grinding (ISEDM). An experimental analysis has been carried out on high speed steel (tool steel Vanadis 23), using a conventional EDM machine and graphite electrode. The effect of pulse off-time, work piece final diameter and machining length on material removal rate, electrode wear ratio, radial accuracy and surface roughness has been quantified. From the study, optimum strategies that involve the use of different EDM regimes for achieving the optimum requirements can be defined. Micro-pins of 0.3 mm diameter with aspect ratio as high as 100:1 have been successfully manufactured.


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