In this article we will discuss about the types of drilling methods used in mining. The types are: 1. Percussive Drilling 2. Rotary Drilling. Method # 1. Percussive Drilling: In this method which is the oldest one of drilling, the hole is drilled by striking a number at short in intervals on the rock by […]
Types of Drilling Methods used in Mining | Boring | Mining Technology
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Process of Deep Hole Boring (With Diagram) | Industrial Engineering
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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 […]