Engineering Metrology

Name: Engineering Metrology
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Screw Thread Measurement

Created byProf. ATK

Last updated 3/2021

English

What you'll learn

Introduction to the terminology used in Screw Thread
Understand the measuring instruments for the screw thread measurement
Applications of screw thread in various fields of Engineering

Course content

1 section • 7 lectures • 29m total length

Introduction4:28
This chapter deals with the introduction of the screw thread. This video also covers some of the basic things in the screw thread identification and measurement.
Terminology1:56
In this lecture a cross section figure of the screw thread is taken for the understanding of the terminology.
The various parameter and its specification are explained in this chapter.
Errors in Screw Thread4:53
The errors in the screw thread will lead to the unsuccessful operation of the screw thread. One must have the clear understanding of the errors present in the screw threads. By the end of this chapter you will be able to understand the types of Errors in the screw thread.
Measuring Instruments for Screw Thread3:57
For every parameter of the screw thread we have the measuring instrument. As a Mechanical Engineer you must have the clear understanding of the all measuring instruments used for the screw thread. This chapter will guide you about the introduction of the screw thread measuring instruments and its working.
Practical Demonstration of Instruments3:57
The real instrument with its practical demonstration can be seen in this lecture. The various instruments of screw thread measurement are demonstrated in this lecture.
Derivations and Methods7:55
For the perfect understanding of the any critical concept from the screw thread its derivation part is very important. In this lecture the derivation part of screw thread is perfectly explained. Also some of the methods to measure the effective diameter are discussed.
Applications of Screw Thread2:48
Its very essential to have the knowledge of the applications of the screw thread at the end of this course, So this last chapter deals with a wide variety of the applications of the screw thread.

Requirements

Quest for learning
Seen the screw, Nut and Bolts

Description

The screw thread concept seems to have occurred first to Archimedes, who briefly wrote on spirals as well as designed several simple devices applying the screw principle. In the 1500s, screws appeared in German watches, and were used to fasten suits of armour. In the 1800s, screw manufacturing began in England during the Industrial Revolution. In these times, there was no such thing as standardization. The bolts made by one manufacturer would not fit the nuts of another. There are many ways to generate a screw thread, including the traditional subtractive types (for example, various kinds of cutting [single-pointing, taps and dies, die heads, milling]; molding; casting [die casting, sand casting]; forming and rolling; grinding; and occasionally lapping to follow the other processes); newer additive techniques; and combinations thereof.

All the content of this course has taken on the real screw threads. With this course all your doubts and misconceptions about the screw will get clear. The knowledge of the screw thread is very important for the Mechanical Engineering students. This course will also benefit the industry person for refreshing their knowledge about the screw thread. The various chapters of the course cover all aspects of the screw thread measurement. Students will understand the screw threads at the application level. The measuring instruments shown in this course are accurate and follow the ISO standards. All the standard practices followed during measurement on the instruments.

Who this course is for:

Engineering Students
Worker on Metrology