In this article we will discuss about:- 1. Meaning of Electro-Chemical Machining (ECM) 2. Applications of ECM Process 3. Advantages 4. Disadvantages and Limitations 5. Characteristics. Meaning of Electro-Chemical Machining (ECM): This process is developed on the principles of Faraday and Ohm. In this process, an electrolytic cell is formed by the anode (workpiece) and the cathode (tool) in the [...]
In this article we will discuss about:- 1. Meaning of Robotized Water Jet Cutting 2. Characteristic of Robotized Water Jet Cutting Process 3. Advantages. Meaning of Robotized Water Jet Cutting: Robotized water jet cutting is a versatile, cost-effective method for shaping products made of plastics, composites and certain sandwich materials. Combined with advanced robot technology, water jet cutting supports frequent [...]
In this article we will discuss about:- 1. Meaning of Ultrasonic Machining (USM) 2. Characteristics of Ultrasonic Machining (USM) Process 3. Rotary Ultrasonic Machining 4. Applications of Ultrasonic Machining (USM) 5. Advantages of Ultrasonic Machining (USM) 6. Limitations of Ultrasonic Machining (USM). Meaning of Ultrasonic Machining (USM): Ultrasonic waves are sound waves which propagate at frequency of 18 to 30 [...]
In this article we will discuss about:- 1. Meaning of Abrasive Jet Machining (AJM) 2. Effect of Various Parameters on Metal Removal Rate (MRR) 3. Characteristics 4. Applications 5. Advantages 6. Limitations. Meaning of Abrasive Jet Machining (AJM): In this process a focused steam of abrasive particles (of size 10 to 40 microns) carried by high pressure gas or air [...]
In this article we will discuss about:- 1. Meaning of Jig Boring 2. Description of Jig Boring 3. Types 4. Machine. Meaning of Jig Boring: Jig borers are used for locating accurately and making the numerous holes necessary for jigs, fixtures, gauges and other precision parts. Although the single-point boring bar is the most important tool used in jig borers, [...]
There are several characteristics that a satisfactory tool material must possess. The most important of these are discussed below: 1. Hot Hardness: It is the ability of the cutting tool to withstand high temperature without losing its cutting edge. This item becomes increasingly important as the speed of the cutting operation is increased and the high temperature strength of the [...]
The three fundamentals steps for making a hole by drilling. The steps are: 1. Locating 2. Cutting 3. Checking. Step # 1. Locating: In making any hole by drilling, boring or any other operation, its exact location at the desired position in the work is utmost. It can be accomplished in the four important ways discussed below: (a) Lay Out: [...]
The following points highlight the eighteen main types of cutting tool materials used in industries. The types are: 1. Plain High Carbon Tool Steel 2. Low Alloy Carbon Tool Steel 3. High Speed Steel 4. Cast Cobalt Base Alloy Tools (Stellites) 5. Cemented Carbides 6. Ceramics 7. Non-Ferrous Alloys 8. Non-Tungsten Materials (Titanium Carbides and Titanium Nitrides) and a Few [...]
Grinding ratio is the quick method of evaluating the grinding wheel performance. Grinding operation removes metal very delicately, leaving a finished surface of superior dimensional accuracy and good surface texture. If it is carried out properly, there will be very less metallurgical damage due to the rise of pressure and temperature of the material being ground. Comparing with any other [...]
Basically there are three different methods by which centreless grinding can be done on different types of jobs. Method # 1. Through-Feed: This is simplest method and is applied only to plain parallel parts such as roller pins and straight long bars which are difficult to grind by ordinary cylindrical grinding method. In this case, controlling wheel is first positioned [...]