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GRUPUL ŞCOLAR I.C.M. NR. 2 CRAIOVA
PROIECT PENTRU EXAMENUL DE
CERTIFICARE A COMPETENŢELOR PROFESIONALE
NIVEL 3 AVANSAT
ŞCOALA POSTLICEALĂ
Calificarea
TEHNICIAN
PROIECTANT ÎN CONSTRUCŢIA DE MAŞINI
Prof. Îndrumător Absolvent
Ing. ACHIM ILIE
CRAIOVA
2011
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TEMA DE PROIECT
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Cap. II
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Cuprins
Argument ………………………………………...................................………. 1
Alegerea materialului semifabricatului…….................................... 3
Stabilirea tehnologiei de prelucrare..............................................4
Alegerea utilajelor…………………………………...................................…6
Verificarea puterii motorului la operatiile de strunjire ……………… 9
Alegerea schemei de baza………………………………………………………….11
Indicarea SDV-urilor……………………………………………………………………13
Calculul adaosurilor de prelucrare………………………………………………14
Calculul regimului de aschiere……………………………………………………21
Stabilirea durabilitatii sculei aschietoare……………………………………22
Stabilirea adincimii de aschiere si a numarului de treceri………….23
Stabilirea avansului de aschiere…………………………………………………24
Stabilirea vitezei…………………………………..……………………………………25
Viteza de achiere…………………………………..…………………………… ….27
Stabilirea turatiei sculei aschietoare………………………………….. ……29
Calculul normelor tehnice de timp…………………………………………….31
Norme de tehnica securitatii muncii………………………………………….33
Table 1 …………………………………..…………………………………..…………….35
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Table 2 …………………………………..………………………………….……… ……36
Table 3…………………………………..…………………………………..…………….37
Desene de executie………………………………………………………………….38
Bibliografie
1. Georgescu S.- indrumarea pentu otelire mecanica Editura Tehnica, Bucuresti 1986
2. C.Picos – Proiectarea tehnologiei de prelucrare mecanica prin aschiere vol. I si II
3. A.Vlase – Regimuri de aschiere, adaosuri de prelucrare si norme tehnice de timpEditura Tehnica,Bucuresti 1985
4. Miail A. – Probleme de masini – unelte Editura Tehnica,Bucuresti
5. C. Picos – Normarea tehnica pentru prelucrare prin aschiere vol. I si II6. Draghici G. – Tehnologia constructiilor de masini
Editura Tehnica,Bucuresti 1984
7. M.Voicu – Utilajul si Tehnologia prelucrarilor prin aschierea vol. I si II.
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