Machining process of mechanincal engineering

this is my tae 1 of maching process required in mechanincal engineering course

1. Department of Mechanical Engineering Name:- Om Khokale Subject:- Machining Process (TAE-1) Semester / Year :- 4 th semester Section:- A_37 Topic :- Broaching and its types , super finishing processes such as honing , lapping , polishing , buffing , burnishing

2. Introduction to Broaching : Broaching is a  machining  process that uses a toothed tool, called a  broach , to remove material. There are two main types of broaching:  linear  and  rotary . In linear broaching, which is the more common process, the broach is run linearly against a surface of the workpiece to produce the cut. Linear broaches are used in a   broaching machine, which is also sometimes shortened to  broach .

3. There are two main types of broaching: linear and rotary. In linear broaching, which is the more common process, the broach is run linearly against a surface of the workpiece to produce the cut. Linear broaches are used in a broaching machine, which is also sometimes shortened to broach. Broaching types :

4. Introduction to Machining Process Machining is the process used to remove material, typically metal, to create parts for machines, tools, transportation, and more. Machine shops and machinists use equipment like lathes, mills, and drill presses to turn material into useful tools using precise cuts. Machining is the process of removing material on a workpiece in order to create a precise object or part. The following are the primary processes used to cut and subtract material in a machine shop by a machinist.

5. Superfinishing is a process in which a rotating workpiece is finished by a relatively soft stone with fine abrasive oscillating parallel to the workpiece surface. The stone typically oscillates at an amplitude of 1–4 mm and a frequency of 10–50 Hz, and it contacts the workpiece at light pressure, typically 0.1–0.2 MPa . The superfinishing process consists of three phases: (1) the  cutting phase , which is characterized by a high material removal rate due to sharp cutting edges; (2) the  transition phase , which is characterized by a decrease in the material removal rate due to dulling and loading of the stone; and (3) the  finishing phase in which dulling and loading results in only slight or no material removal . S uper Finishing Processes :

6. Honing, Honing is an abrasive machining process that produces a precision surface on a metal workpiece by scrubbing an abrasive grinding stone or grinding wheel against it along a controlled path. Honing is primarily used to improve the geometric form of a surface, but can also improve the surface finish.

7. Lapping Lapping is an averaging process where the greatest material removal occurs where the high points of the surface of the part contact the flat lap plate. The object is to produce parts with a uniformly smooth and usually flat surface.

8. Polishing T he polish is generated by using a fine-micron or sub-micron abrasive particle in combination with a liquid. Polishing is a “wet” process. Often the polishing process utilizes a pad to contain the abrasive, so polishing may not be a “loose abrasive process.” The pad is softer than the part.

9. iv. Boring The boring operation is equivalent to turning, but is performed exclusively on internal surfaces. It is used for roughing (sometimes referred to as ‘hogging’), semi-finishing, or finishing of castings or drilled holes. Boring is the operation of enlarging and existing holes. It is done with boring test.

10. Buffing Buffing is defined as a finishing process that involves the use of a loose abrasive on a wheel. To polish a workpiece , a manufacturing company may use a wheel that's covered with an abrasive disc

11. B urnishing Burnishing is a process that modifies the finish of a surface through a precision metal finishing tool. This can be either a ball or roller burnishing tool. This tool smooths metal peaks over valleys in the surface without removing metal from the workpiece .

12. Thank you.