This method can be conveniently used for soil penetration up to 15 m depth. The type of augers commonly used are shown below. For deeper holes or in grounds where gravel, boulders or comp act material is present, this method is not adopted. (b) Shell and auger boring: In this method different type of tools have to be adopted for boring.
9. With a simple sketch, explain the working of a vertical boring machine. 10. Explain the counter boring and counter ringing operation. 11. Explain the Working principle of a Jig boring machine with a neat sketch. UNIT-IV ABRASIVE PROCESSES & GEAR CUTTING PART-A 1. What is the process of self sharpening of the grinding wheel 2.
Jan 17, 2017· The four main types of lathes are * Speed Lathes * Engine Lathes * Tool Room Lathes and * Turret Lathes So let's start . Speed Lathes It is very simple is design. It only has headstock, tailstock and a very simple tool post. It can operate in 3-4 ...
Today's VBMs are often listed as turning and boring machines. If facing is added to that name, it pretty well describes the principal uses of this machine. Just like any lathe, these machines can make only round cuts plus facing and contouring cuts. Jig Borers Jig borers are vertical boring machines with high precision bearings.
This is the simplest type of jig; It is simply a plate made to the shape and size of the work piece; with the require number of holes made it. ... Types Of Drilling Jigs: Drilling jigs may be classified as follows: 1. Template jig. 2. plate type jig . 3. Open type jig . 4. ... For positioning jig on the machine table feet have to be provided ...
Nov 18, 2011· planer with neat sketches. 22) ) With help of neat sketch describe main parts of slotter. 23) a) Explain the following i) Counter boring. ii) Counter sinking. 24) What are different types of drills used? 25) Explain clearly what is meant by Jig boring. 26) Explain the twist drill geometry with neat sketch? 27) ) State the differences in the ...
different types of jig boring machines and explain with different types of jig boring machines and explain with sketches Wikipedia, the free,In machining, . Get Info; Question Bank for ITI - Fitter Trade apprentice - Home, What are the different types of anti-corrosive treatment ? Q 7 A) Draw the sketches of nut and bolt and explain them?
Design of Jigs, Fixtures, Press Tools and Moulds UNIT - 1 LOCATING AND CLAMPING PRINCIPLES 1. Define the term Tool design. Tool design is the process of designing and developing the tools, methods, and techniques necessary to improve manufacturing efficiency and productivity. 2. Name the various operations that can be performed using Jig and ...
0407 Rectangular Grabs for Diaphragm Walls of Different Thickness 0408 Tripod Type Bored Piling Equipment ... 1403 Road Boring Machine 1404 Internal Line up Clamp 1405 External Line up Clamp ... 1423 Jack out Jig 1424 Coating Machine 1425 Holiday Detector 1426 X-ray Machine .
Apr 04, 2015· Different types of vises are used for holding different types of work and for performing different operations. ... bolts and clamps. The top of the machine table has 'T' – slots into which 'T' – bolts may be fitted. ... The cost of making a drill jig is more but a low order of skill is sufficient to work with a drill jig. Different ...
Boring can be viewed as the internal-diameter counterpart to turning, which cuts external diameters. There are various types of boring. The boring bar may be supported on both ends (which only works if the existing hole is a through hole), or it may be supported at one end (which works for both, through holes and blind holes).
The jig borer is a type of machine tool invented at the end of World War I to make possible the location of hole centers quickly and precisely. It was invented independently in Switzerland and the United States. It resembles a specialized species of milling machine that provides tool and die makers with a higher degree of positioning precision (repeatability) and accuracy than those general ...
Jun 25, 2016· TURRET TYPE BM 77. JIG BORING MACHINE Jig boring machine resembles in appearance to a vertical milling machine. Rugged enough for heavy cuts and sensitive enough for light cuts. Essential for modern mass production The machining accuracy of jig boring machine is very high, within a range of 0.0025 mm. 78.
jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. A device that does both functions (holding the work and guiding a tool) is called a jig. An example of a jig is when a key is duplicated, the original is used as a jig so the new key can have the same path as the old one.
4. a). What are the tool holding devices used in drilling machine? Explain b). How to specify Boring machine? What are the different types of boring machines? Draw and describe the horizontal boring machine 5. (a) Describe in detail about lapping with suitable sketches. (b) Explain the tool life aspects of broaching, honing and lapping. 6.
Each turret head can be equipped with a different type of cutting tool. The turret allows the needed tool to be quickly indexed into position. Modern turret type drilling machines are computer-controlled so that the table can be quickly and accurately positioned.
• Boring – Cutting is done inside diameter of the work material. 8. 2. Drilling & Related Operations ... • Vice, Jig and fixture. 11. 3. Milling • Milling – A machine operation in which a ... Machine – Horizontal and Vertical types – Universal and Ram types • Bed-type Mill • Planer-type Mills – the largest ...
Jul 25, 2015· Manufacturing Technology Jig Boring Machine Jig-Boring Machine a metal-cutting machine for finishing holes, planes, and slots with a highly precise location of centers or surfaces without the use of special attachments for tool alignment. Jig-boring machines are used for boring, drilling, counter-sinking, reaming, milling, and other types of ...
Oct 29, 2015· SANDWICH JIGS A form of plate jig with a back plate The w.p is clamped like a sandwich b/w the base plate and the jig plate. This type of jig is ideal for thin or soft parts that could bend or wrap in another style of jig. Here, the use of bushings is determined by the number of parts to be made and diameter of the hole. 19.
Drilling and Boring Machines – Principles of working, specifications, types, operations performed – tool holding devices – twist drill – Boring machines – Fine boring machines – Jig Boring machine. Deep hole drilling machine. Kinematics scheme of the drilling and boring machines. Machine Tools Notes Pdf – MT Pdf Notes. UNIT – V
TYPES OF MILLING MACHINES KNEE-TYPE MILLING MACHINE Knee-type milling machines are characterized by a vertically adjustable worktable resting on a saddle which is supported by a knee. The knee is a massive casting that rides vertically on the milling machine column and can be clamped rigidly to the column in a position where the milling head ...
The jigs and fixtures are the economical ways to produce a component in mass. So jigs ... reader of a CWC machine here works as a jig and the original is called template. ... explain the clamping and its different type, the requirements of a good clamping device,
May 11, 2016· JIG BORING MACHINE • Most accurate of all machine tool • Jig boring machines used for production of jig,fixtures,tools, and other precision parts which requires high degree of accuracy. • Jig boring machines resembles in appearance to a vertical milling machines but both they are different.
Introduction to JIGS AND FIXTURES. Introduction ... with hardened steel bushings for guiding or other cutting tools. a jig is a type of tool used to control the location and/or motion of another tool. A ... Careful consideration to be performed on type and capacity of machine. 3.
