May 07, 2020 · Working principle of Plasma Arc Machining PAM process uses ionized plasma to transfer heat. The plasma is obtained by forcing gas through an electric arc generated between cathode and andode. The high temperature plasma jet melts the metal and remove material from the workpiece.
Apr 21, 2015 · INTRODUCTION The plasma arc machining process was introduced to the industries in 1964 as a method of bringing better control to the arc welding process in lower current ranges. Plasma-arc machining (PAM) employs a high-velocity jet of high- temperature gas to melt and displace material in its path. Today, plasma retains the original advantages it brought to industry by providing an advanced level of control and accuracy.
There are two types of Plasma Arc Machining (PAM) Systems such as Transferred Arc PAM system and Non-Transferred Arc PAM system. In Transferred Arc PAM system, Plasma arc is transferred between electrode and workpiece.
EQUIPMENT Plasma arc machining consists of 1. Power supply (1000A, 200V DC) 2. Gas supply (1.4MPa) 3. Cooling water system 4. control console and plasma torch
What does PAM stand for? PAM stands for Plasma arc machining (also Pulse Amplitude Modulation and 797 more)
View Unconventional machining _ PAM.pptx from DRAFT 135 at Highline Community College. PLASMA ARC MACHINING (PAM) Principle of operation Temperature = 16000 C Thickness = 50 mm SOD = 5 to 10
Nov 19, 2016 · INTRODUCTION Plasma arc machining is a material removal process. The material removal takes place by directing a high velocity jet of high temperature (11,000-30,000℃) ionized gas on work piece. Narrow plasma jet melts the workpiece material in its path. With the high temperature involved, can be used for any material those resistant to oxy-fuel gas cutting.
PLASMA ARC MACHINING (PAM) The plasma welding process was introduced to the welding industry in 1964 as a method of bringing better control to the a rc welding process in lower current ranges.
PLASMA TORCH In PAM, electric arc constricts from nozzle, generates basic plasma jet. Instead of diverging into open arc, The nozzle constricts arc into a small cross section. the plasma arc are classified as.., 1. Air plasma torch 2. Dual gas plasma torch (plasma gas,shielding gas) 3. Oxyen injected plasma torch 4.
What is Plasma Arc Machining? Basically, Plasma Arc Machining (PAM) is a metal cutting process where metals are cut with plasma arc, tungsten-inert-gas arc or a torch. It is mostly used for the metals that cannot be cut by an oxyacetylene torch. Do you know when the PAM was introduced?
Kerf: The width of a cut made by the plasma arc. Plasma: Plasma, sometimes called the fourth state of matter, is a high-temperature, ionized gas. Plasma cutting: Process in which electrically conductive gas is harnessed and controlled. A torch holds consumable parts, which constrict and control the ionized gas stream or plasma arc for cutting ...
The temperature, in the narrow orifice around the cathode, reaches 28,000 °C, which is enough to produce a high-temperature plasma arc. Various physical phenomena such as heat conduction, convection, radiation, mechanical deformation and phase transition etc. occurred in PAM process.
May 09, 2020 · Plasma Arc Machining (PAM), also known as Plasma Arc Cutting (PAC), utilizes a high velocity jet of plasma to supply thermal energy (heat) for melting and vaporizing the workpiece.