Course title
C00300003
Steel Manufacturing Processes

 SHIGI Narumi

YUMOTO Atsushi
Course description
In "Steel Manufacturing Processes", the elastic-plastic behavior and fracture of steel (metal) materials, which are widely used in the manufacture of structures and component elements, are explained. In addition, design and fabrication methods for structures and component elements made of steel (metal) materials under combined conditions by tensile and shear stress, and fatigue loading conditions are explained. The topics of "joints and keys" may be added depending on the progress of the lecture.
Each class consists of a lecture and exercises, and the achievement of the objectives will be evaluated by examinations based on the exercises.
Purpose of class
The aim of this course is to understand the elastic-plastic properties of (metal) materials, to develop the concepts of material mechanics, mechanical design and drafting, and to understand the design and processing methods of structures and component elements under complex stress.
Goals and objectives
  1. To understand the fundamental elastic-plastic properties of steel (metal) materials.
  2. To apply the basic concepts of material strength and mechanical design and drafting to design problems involving steel (metal) materials.
  3. To understand design methods and machining of mechanical components under combined stress and fatigue loading conditions.
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 Midterm examination Final examination Reports Total.
1. 14% 7% 9% 30%
2. 14% 18% 12% 44%
3. 7% 10% 9% 26%
Total. 35% 35% 30% -
Evaluation method and criteria
Students will be comprehensively evaluated based on midterm examination (35%), final examination (35%) and reviews during classes (30%).
Students can pass getting 60 points out of 100 points.
Language
Japanese
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1. Lecture guidance:
･Design in a broad sense and design in a limited sense
･Flow and main points of mechanical design 		Preparation of handouts and review of mechanics of materials. 60minutes
2. Evaluations of material properties:
･Material test
･Young’s modulus and Poisson’s ratio
･Yield stress, Tensile strength and Allowable stress
･Types of stress 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
3. Strength evaluation (1):
･Brittle materials and ductile materials
･Elastic failure
･Bending stress in a beam 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
4. Strength evaluation (2):
･Simple material test
･Simple failure test by bending
･Strength evaluation based on test results 		Preparation and review of handouts. 60minutes
Prepare the test report. 110minutes
5. Strength evaluation (3):
･Mohr’s stress circle
･Principal stress and principal shear stress
･Fundamental design of shaft 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 120minutes
6. Concept of weight saving:
･Weight saving method
･Weight saving of swing arm
･Weight saving of a shaft under twisting 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
7. Midterm examination:
Examination covers from class 1 to class 6.
･Comments and explanations for examination 		Review from class 1 to class 6. 300minutes
8. Design of rotating elements:
･Unbalance
･Critical speed of solid of revolution (rotation shaft) 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
9. Concept of shape optimization:
･Beam and shaft of uniform strength
･Optimum design supported by computer 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
10. Treatment of structural reinforcement:
･Composite materials and its applications
･Composite beam and its strength 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
11. Treatment of bolt fastening:
･Tensile and shear strength of bolts
･Design method of bolts 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
12. Gear systems:
･Name of each part of gear
･Velocity ratio and torque ratio
･Transmitted power
･Design of gear 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 120minutes
13. Fatigue design:
･Fatigue limit and fatigue strength
･Design based on fatigue strength 		Preparation and review of handouts. 60minutes
Answer the practice problems and prepare the report. 110minutes
14. Final examination:
Examination covers from class 8 to class 13.
･Comments and explanations for examination 		Review from class 8 to class 13. 400minutes
Total. - - 2650minutes
Feedback on exams, assignments, etc.
ways of feedback specific contents about "Other"
授業内と授業外でフィードバックを行います。
Textbooks and reference materials
Handout
References: Textbook of “Mechanics of Materials”, K. Watanabe, “Zairyo rikigaku”, Baifukan Co., Ltd.
Prerequisites
Basic knowledge of mechanics of materials and machine design & drawing.
Office hours and How to contact professors for questions
  • Questions will be accepted after the class or via e-mail.
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Course that cultivates an ability for utilizing knowledge
  • Course that cultivates a basic problem-solving skills
  • Course that cultivates a basic self-management skills
Active-learning course
More than one class is interactive
Course by professor with work experience
Work experience Work experience and relevance to the course content if applicable
Applicable Based on experience in estimated and detail design work, practical knowledge of problems in design calculations will be explained as necessary.
Education related SDGs:the Sustainable Development Goals
  • 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
  • 12.RESPONSIBLE CONSUMPTION & PRODUCTION
  • 13.CLIMATE ACTION
Last modified : Sat Mar 08 04:30:46 JST 2025