• Production Engineering, Semester 1, position 5

Acquisition of theoretical and practical knowledge in the domain of the design, calculations and construction of tools for sheet-metal processing by punching, drilling, bending, drawing, and combination of these methods. The student acquires a sound understanding of the importance of team work and cooperation in the area of the design based on contemporary technologies and optimal solution.

On successful completion of the course, students should be able to: • Evaluate each element of the tool for its construction and function with respect to the material and performance. • Identify different concepts of cutting sheet-metal plates, strips and work-pieces, and perform computations for metal efficiency level, which enables students to also understand economic indicators. • Identify different concepts and specificities of sheet-metal processing tools. • Create a concept of a sheet-metal processing tool for a specified part.

The mathematical theory of plasticity and physics of plastic deformation in solids (hypotheses and models of solids). Plastic deformation mechanism. Continuum mechanics. Elastic repositioning of sheet metal. Deformation force and work in processing by punching, drilling, bending, drawing. Determination of the sheet-metal holder force. Determination of the press force. Determination of the tool pressure center. Determination of preliminary work-piece measurements for components manufactured by bending and drawing. Determination of the sequence and number of operations. Construction characteristics of tool working elements.

During laboratory exercises the student is acquainted with practical realization of sheet-metal processing tools. Project design for a concrete practice-related work-piece. Tools for making normal-accuracy components. Single-operating, multiple-operating and combined tools. Tools for making ribs for smaller or larger hole shaping. The hole enlargement by edge drawing. A visit to the factory where students are acquainted with the tool making technological process. Acquainting students with recommendations from practice relevant to tool design.

Defined by the Study Program Curriculum

1. Standardized tool elements, Sheet-metal processing tool elements, Lab for FTS, machining processes and tools, ЛПС

Total assigned hours: 75

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

Auditory exercises: 2
Laboratory exercises: 10
Calculation tasks: 0
Seminar paper: 0
Project: 14
Consultations: 0
Discussion/workshop: 4
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 6
Test: 0
Test: 4
Final exam: 5

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): 30

Jovičić M., Tanović Lj., TOOLS AND TOOLING FIXTURES - calculations and constructrions of sheet-metal processing tools, FME, Belgrade, 2007, КПН