In this article we will discuss about:- 1. Meaning of Milling Machine 2. Classification of Milling Machines 3. Principal Parts 4. Work Performed 5. Methods 6. Setting Up the Machine 7. Parameters 8. Cutting Forces 9. Effect of Various Factors on Horsepower. Contents: Meaning of Milling Machine Classification of Milling Machines Principal Parts of Milling Machines Work Performed by Milling [...]
In this article we will discuss about:- 1. Attachments for Milling Machine 2. Special Accessories for the Universal Milling and Boring Machine. Attachments for Milling Machine: The various attachments are described below and also how they increase the versatility of the milling machine. 1. Vertical Milling Attachment or Swivel Attachment: This attachment is desirable on horizontal milling machines for substituting [...]
In this article we will discuss about:- 1. Meaning of Milling Cutter 2. Material of Milling Cutter 3. Hand of Milling Cutter Rotation 4. Elements of Fluted Milling Cutter 5. General Comments on Form of the Cutting Edge of Milling Cutter 6. Number of Teeth on Milling Cutter 7. Face Milling Cutter 8. End Mills 9. Carbide Milling Cutters 10. [...]
The following points highlight the various types of milling machines used in industries. The types are: 1. Column and Knee Type Milling Machine 2. Vertical Milling Machine 3. Ram-Type Universal Machine 4. Universal Milling Machine 5. Bed-Type Milling Machine 6. Planer-Type Milling Machine. Type # 1. Column and Knee Type Milling Machine: This is a very versatile machine capable of [...]
Finish obtainable by milling process depends on insert corner geometry, tool geometry, rake angle, insert tolerance, and operating conditions. In the case of face milling using an insert with a corner radius r, and using feed per insert (f), the arithmetic average roughness height is proportional to: Obviously from this formula, for better finish, both 'r' and 'f' should be [...]
For good finish milling operation the entire machine set up must be rigid and light because any looseness or lack of rigidity in machine affects the finish adversely. For best results, the spindle should be tilted very slightly in the direction of feed so that cutter does not lie flat to the workpiece. If the cutter lies flat to the [...]
It is proposed to cut a plain milling cutter having 10 flutes. The end view of the cutter is shown in Fig. 16.45. The flute is to have a right hand cut and a right- hand helix with a 25 degree helix angle. The cutter blank is made from high speed steel that has been carefully annealed to a hardness [...]
It is always the aim of a production engineer to obtain high quality work with minimum expenditure. The following tips would be helpful in achieving this objective. In selecting milling cutters, it should be remembered that, in most cases, milling operations performed with face- milling cutters are more economical than those with cylindrical slab-milling cutters. For instance, it is not [...]