Lucrarea se ocupă de determinarea curbelor limită pentru deformaţii şi a curbelor limită pentru tensiuni la apariţia stricţiunii prin utilizarea unor încercări cum sunt încercarea la tracţiune, compresiune şi încercarea ...
Realizarea unei maşini unelte cu comanda numerica performanta ridică o serie de probleme noi, printre care şi stabilirea cursei moarte. Lucrarea prezintă sursele cursei moarte cât şi o serie de măsuri pentru minimizarea ...
In this paper one present the relationship between the positioning angles of the grinding wheel and the work parameters of the inserts on the milling cutters expressed as mathematical equations. These relations are given ...
In this paper one present the principle of uninterrupted sharpening of the milling cutters. This type of sharpening offer the following advantages: simultaneous sharpening of the inserts, great simplification of the cutters ...
In this paper solutions of the equations of the relativistic perfect fluids are analyzed as relativistic models of a radiating balanced sphere. We present a conformally flat metric representing the gravitational field of ...
The paper presents ways of modelling for the synthesis of the Watt and Stephenson link adjustable mechanisms, for prescribed positions. The mathematical model has the shape of an system of nonlinear equations determined ...
This paper shows the results of laboratory and factory experimental investigations on the effectiveness of technological lubricants, which are used in separating and form changing operations of cold stamping. The firmness ...
The determination of the kinematics parameters is presented in this paper by dynamic analysis of the operating mechanism. This mechanism achieve the displacement of the movable contact of the circuit breaker. The dynamic ...
KOVALENKO, V. I.; SHAPOVAL, E. A.(Tehnica-Info, 2002)
Cercetarea procesului de lucru al instalaţiei a demonstrat că puterea şocului N este determinată de câţiva factori independenţi. Utilizarea π – teoremei cu 13 variabile de bază a demonstrat că procesul de lucru al instalaţiei ...
The work presents the examination of some physico-mechanical properties of ferrous-nickel electrolytic plating with the kaprolactam content , which has been obtained from a new electrolyte. As a result in these investigations ...
With use of the method of sources of heat is developed the technique of temperatures account on a forward surface of the cutting tool edge. The analysis of influence of parameters of the tool on temperature of its edge is ...
Virtual reality comprises a large range of technologic and equipment (electronic equipment, hydraulic equipment, real-time computing systems, optic design), that governs sensations appealing to human senses (seeing, hearing, ...
In the work paper are presented the results obtained from experimental, model and exploitation researches, effectuated over piston rings with different profiles of the exterior surface, situated in permanent contact with ...
In the work paper is mentioned the importance and the advantages of diesel engines re-equipment for operation on “gas-diesel” cycle, by implementing additional constructive applications and applying ingenious engineering ...
Prezenta lucrare este o sinteză asupra evoluţiei modelelor de produs dezvoltate în ingineria integrată. Se abordează: modelarea prin domenii, modelarea function - behavior - state, modelarea graf - produs, modelarea prin ...
Se analizează efectele principalelor caracteristici ale fibrelor metalice utilizate pentru armarea dispersă a betonului (raport geometric, profil longitudinal şi procent volumetric de armare) asupra lucrabilităţii materialului. ...
This paper presents the influence working parameters on the surface roughness for materials 40Cr10 and RUL 1 in flat lapping. Research has experimentally demonstrated the dependence of roughness Ra on variables e (eccentric), ...