Tools and Fixtures

ID: 1361
Course type: vocational and applied
Course coordinator: Popović D. Mihajlo
Lecturers: Pjević D. Miloš, Popović D. Mihajlo
Contact: Popović D. Mihajlo
Level of studies: B.Sc. (undergraduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: oral
Department: Department of Production Engineering

Lectures

Goal

Acquisition of theoretical and practical knowledge of design, computations and constructions of clamping fixtures, sheet-metal processing tools, metal pressure casting tools, forming and shaping plastics tools and forging tools, all this based on modern technologies and optimal solution.

Outcome

On successful completion of the course, students should be able to: • Identify different cutting tools and fixtures to use them in a respective metalworking process by cutting. • Evaluate each element with respect to differences in positioning, clamping and present accompanying errors. • Identify different fixture concepts and perform accuracy computations. Students acquire the skill to understand more clearly the concept of metalworking process accuracy. • Describe in brief the cutting tool and fixture used for manufacturing a specified product.

Theoretical teaching

Theory of the principles of work-piece locating and positioning. Theory of the cutting process, determination of the principle machining factors, deformation force and deformation work. Stability theory. Theory of elastoplastic deformation. Determination of the principle machining factors in plastic deformation processing. Construction and computations for elements of clamping fixtures, computations for clamping fixtures accuracy, sheet-metal processing tools, construction characteristics of tool elements, forging tools, metal pressure casting tools, and forming and shaping plastics tools.

Practical teaching

Laboratory exercises where students accomplish practically the task of cutting tools and fixtures conception. Of the cutting tools, students are acquainted with the design of turning tool, drill, counter-bore, reamer, tap, milling cutter, wheel, as well as with engineering materials used to make cutting tools. Of the clamping fixtures, students are familiarized with three-jaw chuck, rotating center, rest, lathe dog, wedge-lock vise, expansion collets, as well as with the design of universal, special and universal jig and fixture system. Design project for a concrete task related to engineering practice.

Attendance requirement

Defined by the Study Program Curriculum.

Resources

1. Universal fixtures, Special clamping fixtures and Aggregated clamping fixtures, Lab for FTS, metal working and tools, ЛПС [In Serbian] 2. Cutting tools, sheet-metal processing tools and forging tools, Lab for FTS, metal working and tools, ЛПС [In Serbian]

Assigned hours

Total assigned hours: 75

Active teaching (theoretical)

New material: 20
Elaboration and examples (recapitulation): 10

Active teaching (practical)

Auditory exercises: 0
Laboratory exercises: 14
Calculation tasks: 0
Seminar paper: 0
Project: 14
Consultations: 0
Discussion/workshop: 2
Research study work: 0

Knowledge test

Review and grading of calculation tasks: 0
Review and grading of lab reports: 1
Review and grading of seminar papers: 0
Review and grading of the project: 5
Test: 0
Test: 4
Final exam: 5

Knowledge test (100 points total)

Activity during lectures: 10
Test/test: 20
Laboratory practice: 10
Calculation tasks: 0
Seminar paper: 0
Project: 20
Final exam: 40
Requirement for taking the exam (required number of points): 35

Literature

Tanović Lj., Jovičić M., TOOLS AND FIXTURES – design, computations and constructions of clamping fixtures, FME, Belgrade, 2011, КПН [In Serbian]