Scenario from the practical lesson of the landscape architecture technician – 7 scenario MEC09

Scenario from a practical lesson

for the profession: MECHANICAL TECHNICIAN

Qualification: MEC.09 Organization and supervision of machinery and equipment manufacturing processes.

Class: IV

Number of hours: 8 hours

Place of holding classes: P.P.H.U. Filstal, Maciej Filutowski 17-300 Siemiatycze

Practical activity topic: Observance of tolerances and fits.

Unit Themes:

Application of tolerances and fits in mechanical engineering

The student is familiar with the concept of tolerance fields
The student knows the position of the tolerance field relative to the nominal dimension
The student, on the basis of a numerical or symbolic designation, can determine and read from standards both the position of the tolerance field relative to the nominal dimension and its width
The student knows the concept of fits in mechanical engineering
The learner knows what a fixed shaft fit and a fixed hole fit are
The student distinguishes between loose, mixed and tight fits
Student reads tolerances and fits from documentation
The student calculates the upper and lower dimensions of the tolerance field
The student calculates the indentation or clearance of a fit
The learner selects the correct manufacturing methods and cutting parameters in order to obtain the expected tolerance field of the manufactured part

cognitive: Getting acquainted with the concept of tolerances and fits
Educational: Ability to read tolerances and fits from standards
educational: Knowledge of the consequences of making details with an incorrect tolerance field and the consequences when assembling such details