Archive | Drilling Machine

Precautions in Drilling Operations | Industries | Engineering

To obtain best results in drilling operations, following points should be observed carefully: (i) Machine tool must be rigid enough otherwise parts may be deformed by the cutting forces generated. Drill feeding arrangement must be directionally stable. (ii) Accurately ground drill should be used so that uniform chips are produced by both cutting edges, otherwise unbalanced forces may deflect the [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on Precautions in Drilling Operations | Industries | Engineering

15 Main Parts of Twist-Drill | Machine Tools | Industrial Engineering

The following points highlight the fifteen main parts of twist drill. The parts are: 1. Body 2. Shank 3. Dead Centre 4. Point 5. Cutting Edge 6. Lips 7. Lip Clearance 8. Margin 9. Body Clearance 10. Webs 11. Rake Angle of a Drill 12. Helix Angle 13. Point Angle 14. Chisel-Edge Angle. Part # 1. Body: It is the [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on 15 Main Parts of Twist-Drill | Machine Tools | Industrial Engineering

21 Main Types of Drills | Machine Tools | Industrial Engineering

There is a wide variety of types and sizes of drills. Fig. 18.17 shows the various types of conventional and special purpose drills. Most twist drills are made of high speed steel with or without a carbon-steel shank joined to the body. Some drills are made of cobalt alloys and others have inserts of cemented carbides. Type # 1. Taper-Shank [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on 21 Main Types of Drills | Machine Tools | Industrial Engineering

Process of Deep Hole Boring (With Diagram) | Industrial Engineering

The drilling or boring of long, relatively small diameter holes presents special difficulties which prevent the employment of ordinary drilling methods. Spade drills were originally used for this work, but lack of accuracy, poor quality of finish, and short tool life, coupled with the slowness of the operation due to need for frequent withdrawal of the drill in order to [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on Process of Deep Hole Boring (With Diagram) | Industrial Engineering

Drilling Machine: Operations and Maintenance | Industrial Engineering

In this article we will discuss about:- 1. Meaning of Drilling Machine 2. How to Specify a Drilling Machine 3. Operations Performed by Drilling Machine 4. Cutting Speeds and Feeds of Drilling Machine 5. Machining Time in Drilling 6. Power for Drilling 7. Drills and Drilling 8. Cutting Process in Drilling Operation 9. Drill Wear and Sharpening a Drill. Meaning [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on Drilling Machine: Operations and Maintenance | Industrial Engineering

Classification of Drilling Machines | Industrial Engineering

The following points highlight the twelve main types of drilling machines widely used in industries. The are: 1. Portable Drilling Machine 2. Sensitive Drilling Machine 3. Upright or Column Drilling Machine 4. Upright or Column Drilling Machine 5. Gang Drilling Machine 6. Multi-Spindle Drilling Machine 7. Vertical Turret Type Drilling Machine 8. Automatic Drilling Machine and Few Others. Type # [...]

By |2017-07-24T11:54:22+05:30July 24, 2017|Drilling Machine|Comments Off on Classification of Drilling Machines | Industrial Engineering
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