Introduction to Drawing
TeachersMANAKO Hiroyasu
Grade, SemesterYear 2 1st semest [Department of Aerospace Engineering, Faculty of Science and Engineering]
CategoryBasic Major Subjects
Elective, CreditsRequisites 2credit
 Syllabus Number2F101

Course Description

In order to design a machine, it is necessary to select the material of parts constituting it, strength evaluation, and study of manufacturing / assembly method. Also, it is necessary to properly select machine elements such as screws so as to meet required specifications. The design information obtained in this way is transmitted to the manufacturing site using means called "drawings". This work is "drawing". In order to correctly communicate information, various rules for drawing are defined. In this course, students will understand these rules and actually create drawings using drafting tools.
The aims in this lecture are to obtain knowledge on DP1 and to train goal achievement on DP3.

Course Objectives

Students will learn the machine drawing rules and understand the basics of machine drawing through assignment practice. Specifically, targets are the following items:
(1) Understanding the projection method and converting a three-dimensional object to a two-dimensional plane
(2) Understanding and using basic drawing rules such as dimensioning and tolerance
(3) Understanding the workings of machine elements such as screws and gears and expressing them in drawings

Grading Policy

Evaluation is based on the submission of assignments to be presented in each lecture.
Evaluate grades according to each submitted subject.
Since the assignment will be returned after checking, please use it to confirm the degree of comprehension and target achievement.

Textbook and Reference

KindTitleAuthorPublisher
Textbook"Kikaisekkei・seizuno kiso 2nd Edition" Tadao TsukadaMathematical Engineering Company
ISBN 978-4901683685.
References"JIS ni motoduku hyoujun seizuho 15th Edition"Kiyoshi OhnishiOhmsha
ISBN 978-4274224164

Requirements(Assignments)

The task is basically drawing creation. Be sure to bring A4 size grid paper and drawing tools such as, triangle ruler, compass etc. Also do not forget to bring your textbooks as described in section 4.

Preparation (about 1.5 hour);Please read the contents corresponding to each lesson of the text book and LMS material.
Review (about 1.5 hour); Please review the assignments given in the lecture so that you can do them in a short time without looking at the textbook.

Note

Schedule

1Basics of machine drawing: Learn the basics of drawing, such as significance of machine drawing, purpose of drawing rules, usage of drawing tools
2Projection method: Learn the basic drawing method and the projection method on the third angle projection method
3How to represent figures (1): Learn expressions by partial projections and sectional views showing parts that are difficult to see
4How to express figures (2): Learn about isometrics for understanding shapes in three dimensions
5Dimensioning method (1): Learn the principles of dimensioning, dimension arrangement, and so on
6Dimensioning method (2): Learn how to describe diameter / radial dimension, supplementary symbol, and basic processing method such as hole processing, etc.
7Dimensional tolerance and fitting: Learn about tolerance concept, fitting type and notation
8Exercise (1): Drafting of some mechanical parts including items which were studied so far
9Geometrical tolerance (1): Learn geometrical tolerance such as linearity of axis and meaning of tolerance
10Geometrical tolerance (2): Learn about position tolerance which are important in assembling parts and maximum material requirement considering rationality of machining
11Surface texture: Learn how to request finished state of product
12Mechanical elements (1): Learn about screw specifications and drawing methods
13Mechanical elements (2): Learn about gear type and drawing method
14Mechanical elements (3): Learn about bearing performance and drawing method
15Exercise (2): Drawing machine parts including geometrical tolerance requirement