What are the parameters and characteristics of Abrasive jet machining?
The process parameters that control metal removal rate are air quality and pressure, Abrasive grain size, nozzle material, nozzle diameter, stand of distance between nozzle tip and work surface. INTRODUCTION: Abrasives are costly but the abrasive jet machining requires very less investment and less maintenance cost.
What are the process parameters in abrasive water jet machining?
Important quality parameters in AWJM are material removal rate (MMR), surface roughness, kerf width and tapering of the kerf. The abrasive particle used for AWJM is usually silicon carbide and aluminum oxide. The abrasive particle is embedded to the water jet purposely to increase the MMR of the process.
What are the tolerance limits 1 point values in abrasive water jet machining?
What are the tolerance limit values in Abrasive water jet machining? Explanation: In Abrasive jet machining, tolerance limit values range between ± 0.05 mm. 15.
What are the process parameters of Ultrasonic machining process?
Few key parameters of USM are abrasive size, the effect of slurry, effect of amplitude, the effect of frequency, effect of tool and work material, and etc. To obtain high results in terms of accuracy and precision, we need to consider the optimal value of these parameters.
What is the cause of tapering in Abrasive jet machining?
Taper may result from uneven wear in the mixing tube. This is not a function of the motion-control equipment, but rather a consequence of how the abrasive wears inside the mixing tube. Rotating the mixing tube 90 deg.
What are the process variables that affect the performance of water jet machining process?
The considered process variables are traverse speed, jet pressure, abrasive flow rate and stand-off distance.
What are the size ranges of the abrasives used in magnetic abrasive finishing?
What are the size ranges of the abrasives used in Magnetic abrasive finishing? Explanation: The size of abrasives used for finishing range between 1 to 10 microns.
What is abrasive process?
Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Common examples include grinding, honing, and polishing.
What is Abrasive jet machining used for?
In the form of abrasive jet it is used for machining like cutting, drilling, and engraving of brittle materials. Surface fast cleaning and preparation are done by using abrasive jet for welding and plasma spray coatings. The erosion tests of turbine blades, propellers are done by using abrasive jet application.
What is the optimum range of velocity of abrasive AJM process?
In AJM, generally, the abrasive particles of around 50 microns grit size would impinge on the work material at velocity of 200 m/s from a nozzle of ID 0.5mm with a stand off distance of around 2mm.
Which of the following is not a process parameter of abrasive water jet machining?
Which of the following is not a process parameter of Abrasive water jet machining? Explanation: Frequency of the vibrations does not belong to the parameters of Abrasive water jet machining.
What is abrasive jet machining?
Abrasive Jet Machining Physics of the Process: •This is a process of removal of material by impact erosion. • Fine particles (0.025mm) are accelerated in a gas stream. • The particle are directed towards the focus of machining. • As the particles impact the surface, it causes a micro fracture, and gas carries fractured particles away.
What is high velocity jet abrasive?
•The high velocity stream of abrasives is generated by converting pressure energy of carrier gas or air to its Kinetic energy and hence high velocity jet. •The high velocity abrasive particles remove the material by micro-cutting action as well as brittle fracture of the work material.
What is the effect of process parameters on MRR 30?
Abrasive Jet Machining effect of process parameters on MRR 30. Abrasive Jet Machining In AJM, generally, the abrasive particles of around 50 μm grit size would impinge on the work material at velocity of 200 m/s from a nozzle of I.D. of 0.5 mm with a stand off distance of around 2 mm.
What is the kinetic energy of the abrasive particles?
The kinetic energy of the abrasive particles would be sufficient to provide material removal due to brittle fracture of the work piece or even micro cutting by the abrasives. 31. Abrasive Jet Machining In Abrasive Jet Machining (AJM), abrasive particles are made to impinge on the work material at a high velocity.