TEHNOLOGICAL ELEMENTS ABOUT MANUFACTURING
OF TOOTHING TOOL OF CYCLOIDAL GEARINGS (I)
The paper presents the basic technological elements about
manufacturing of toot hinge toot of cyclonical gearings
Cuvinte cheie: elicoid arhimedic
Keywords: helical Archimedes
ABOUT OF MILLING FACE AND SIDE GEOMETRY FOR INVOLUTE SPLINES GENERATED BY MILLING The paper presents the basic elements of milling face and side profile for involutes spines generated by milling. Cuvinte cheie: profil evolventic Keywords: involutes profile 81 ASUPRA GEOMETRIEI FREZELOR DISC PENTRU
CONSIDERATIONS ABOUT OF 0VERCENTRODE CYCLOIDAL GEARING GEOMETRY
The paper presents, in vision of Professor Litvin, the basic elements of
of tthe overcentrode gearing geometry.
Cuvinte cheie: elicoid arhimedic
Keywords: Archimedes helical
GENERATION OF PLANAR AND HELICAL ELIPTICALGEARS BY HOB (III)
The paper presents the basic elements of generation planar and
helical elliptical gears by hob in vision of Profesor Litvin.
Cuvinte cheie: centroidă eliptică, freză melc
Keywords: elliptical centroid, cutter worm
GENERATION OF PLANAR AND HELICAL ELIPTICALGEARS BY HOB (II)
The paper presents the basic elements of generation planar and
helical elliptical gears by hob in vision of Profesor Litvin.
Cuvinte cheie: centroidă eliptică, freză melc
Keywords: elliptical centroid, cutter worm
GENERATION OF PLANAR AND HELICAL ELIPTICALGEARS BY HOB (I)
The paper presents the basic elements of generation planar and
helical elliptical gears by hob in vision of Profesor Litvin.
Cuvinte cheie: centroidă eliptică, freză melc
Keywords: elliptical centroid, cutter worm
CONSIDERATIONS ABOUT WORM-FACE GEAR DRIVE
WITH BACKLASH ADJUSTMENT POSSIBILITY (II)
The paper presents the basic elements of worm-face gear drive with
backlash adjustment possibility.
Cuvinte cheie: melc duplex, roată plană.
Keywords: worm duplex flat wheel
CONSIDERATIONS ABOUT WORM-FACE GEAR DRIVE
WITH BACKLASH ADJUSTMENT POSSIBILITY (I)
The paper presents the basic elements of worm-face gear drive with
backlash adjustment possibility.
Cuvinte cheie: melc duplex, roată plană
Keywords: worm duplex, flat wheel
MATHEMATICAL MODEL AND CAD SIMULATION
OF THE HOB FOR MACHINING THE FACE GEAR
FROM THE WORM-FACE GEAR DRIVE
The paper presents a study related to mathematical modeling and
CAD simulation of the hobs used for machining the face gears teeth, from the
worm-face gear drives in which the worm is of ZK1-type. The study is limited to
determination of mathematical relations necessary for hobs design, as well as
for their CAD modeling. Some practical example results of 3D CAD models,
built on developed theory for hobs used in machining particular face gears, are
also presented.
Cuvinte cheie: angrenaj melc-roată plană, freză-melc, simulare CAD
Keywords: worm-wheel gear flat, rotary-screw, CAD simulation
DETERMINATIONS OF THE BASE ELEMEMENTS OF GENERATING WHEEL FOR KLINGELNBERG-PALLOID TEETH (II)
The paper presents the basic elements of generating wheel for
Klingelnberg-Palloid teeth.
Cuvinte cheie: roata generatoare.
Keywords: wheel generators
DETERMINATIONS OF THE BASE ELEMEMENTS OF GENERATING WHEEL FOR KLINGELNBERG-PALLOID TEETH
The paper presents the basic elements of generating wheel for
Klingelnberg-Palloid teeth.
Cuvinte cheie: roata generatoare
Keywords: wheel generators
CONSIDERATIONS ABOUT TOOTHING PROCEEDINGWITH CONICAL HOB KLINGELNBERG PALLOID (III)
The paper presents the basic elements of toothing proceeding with
conical hob Klingelnberg-Palloid.
Cuvinte cheie: freza melc conică
Keywords: milling cone snail
CONSIDERATIONS ABOUT TOOTHING PROCEEDING WITH CONICAL HOB KLINGELNBERG PALLOID (II)
The paper presents the basic elements of toothing proceeding with
conical hob Klingelnberg-Palloid.
Cuvinte cheie: freza melc conică
Keywords: milling cone snail
CONSIDERATIONS ABOUT TOOTHING PROCEEDING WITH CONICAL HOB KLINGELNBERG PALLOID
The paper presents the basic elements of toothing proceeding with
conical hob Klingelnberg-Palloid.
Cuvinte cheie: freza melc conică
Keywords: milling cone snail
TECHNICAL DESIGN SYSTEMS ON MECHATRONIC PLATFORMS (II)
This paper is intended to issue a brief overview of methods used to
design structured logic functions/adjustment and control strategy. Idea as a
whole system approach, involving the design and optimization rather than a
sequence of incremental steps. Optimizing functional fluidic systems involves
building a mathematical model, analysis of physical phenomena associated.
Other approaches in research aimed mechatronic systems design techniques
that parts of the system are real; some are virtual so that the test pro-cedures
and data validation can be performed as in reality. The user is thus familiar with
the operation and structure of an industrial system, programming language
functioning using technology and specific real industrial environment, without
risk of damaging the plant (to make the process as simulated in the laboratory).
Cuvinte cheie: microcontroler, sinergie, Programmable Logic
Controller (PLC), sensorică, Control Prototyping (PC), Hardware-In-the-Loop
(HIL), Software-In-the-Loop (SIL)
Keywords: microcontroller, synergy, Programmable Logic Controller
(PLC), Sensors, Control Prototyping (PC), Hardware-In-the-Loop (HIL),
software-in-the-Loop (SIL)
TECHNICAL DESIGN SYSTEMS ON MECHATRONIC PLATFORMS (I)
This paper is intended to issue a brief overview of methods used to
design structured logic functions/adjustment and control strategy. Idea as a
whole system approach, involving the design and optimization rather than a
sequence of incremental steps. Optimizing functional fluidic systems involves
building a mathematical model, analysis of physical phenomena associated.
Other approaches in research aimed mechatronic systems design techniques
that parts of the system are real; some are virtual so that the test pro-cedures
and data validation can be performed as in reality. The user is thus familiar with
the operation and structure of an industrial system, programming language
functioning using technology and specific real industrial environment, without
risk of damaging the plant (to make the process as simulated in the laboratory).
Cuvinte cheie: microcontroler, sinergie, Programmable Logic
Controller (PLC), sensorică, Control Prototyping (PC), Hardware-In-the-Loop
(HIL), Software-In-the-Loop (SIL)
Keywords: microcontroller, synergy, Programmable Logic Controller
(PLC), Sensors, Control Prototyping (PC), Hardware-In-the-Loop (HIL),
software-in-the-Loop (SIL)
The present work contents the presentation of a saving energy gas
turbine plant, intended to equip a normal railway engine, on purpose to
modernise and assurance the energetic necessary for the external services that
is the necessary services for train.
Cuvinte cheie: instalație de turbină de gaze, cogenerare, recuperare
de căldură
Keywords: gas turbine plant, cogeneration, heat recovery
Le travail présente les principaux types d’usures qui apparaissent aux
pompes des machines pour la protection des plantes. Pendant le
fonctionnement d’un système technique, apparaissent des usures, dues aux
frictions et aux agréssions physique et/ou chimiques, usures qui modiffient
géométriquement, dimensionnellle et structurale, les qualités fontionnelles du
système. Les usures bessent les performances fonctionnelles du mécanisme.
La connaissance de la spécificité et des limites de ces usures, dans des
conditions complèxes où elles se passent, a un caractère empirique. Celle-ci
impliquent une observation attentive de tous les zones et de tous les types
d’usures, qui, dans le cas des pompes des machines pour les travaux pour la
protection des plantes, sont influencées différamment par l’agressivité chimique
des substances pompées. L’optimisation de la relation prix de revient-sécurité
en fonctionnement (fiabilité et maintenence) amène a un degré elevé
d’utilisation des pompes à membrane, avec le maintien constant des
paramètres de fontionnement, qui peut se faire seulement par des essais
complexes, dans des différentes conditions de matériau et d’environnement.
Cuvinte cheie: uzura specifică, pompe volumice, pompe cu
membrană, membrană flexibilă
Mots-clés: porter spécifiques, pompes volumétriques, pompes à
membrane, la membrane souple
Le travail présente les principaux types d’usures qui apparaissent aux
pompes des machines pour la protection des plantes. Pendant le
fonctionnement d’un système technique, apparaissent des usures, dues aux
frictions et aux agréssions physique et/ou chimiques, usures qui modiffient
géométriquement, dimensionnellle et structurale, les qualités fontionnelles du
système. Les usures bessent les performances fonctionnelles du mécanisme.
La connaissance de la spécificité et des limites de ces usures, dans des
conditions complèxes où elles se passent, a un caractère empirique. Celle-ci
impliquent une observation attentive de tous les zones et de tous les types
d’usures, qui, dans le cas des pompes des machines pour les travaux pour la
protection des plantes, sont influencées différamment par l’agressivité chimique
des substances pompées. L’optimisation de la relation prix de revient-sécurité
en fonctionnement (fiabilité et maintenence) amène a un degré elevé
d’utilisation des pompes à membrane, avec le maintien constant des
paramètres de fontionnement, qui peut se faire seulement par des essais
complexes, dans des différentes conditions de matériau et d’environnement.
Cuvinte cheie: uzura specifică, pompe volumice, pompe cu
membrană, membrană flexibilă
Mots-clés: porter spécifiques, pompes volumétriques, pompes à
membrane, la membrane souple
This paper summarizes some aspects of wear parts distribution goes
into internal combustion in four stroke engines. One of the most important
pieces is referred to the intake and exhaust valves of the engine.
Cuvinte cheie: supapă, motor, distribuție, uzură, arc taler, gaze
Keywords: valve, motor, distribution, wear plate spring, gas
L’article présente des considérations sur l’usure d’abrasion, avec
référence aux pompes des machines pour la protection des plantes. Pendant le
fonctionnement des pièces ou des systèmes mécaniques complexes apparaît
la modification des dimensions et de la qualité des surfaces en contact par
l’intervention des substances chimiques pompées, ce qui amène, assez
souvent, au blocage, par apparition de l’usure d’abrasion. On donne aussi la loi
d’usure d’abrasion et quelques considérations sur le coefficient d’usure
d’abrasion.
Cuvinte cheie: uzura de abraziune, deformare plastică, microaşchiere,
forţa normală de penetrare, uzura liniară, coeficient de uzură
Mots-clés: l’usure par abrasion, déformation plastique, micro-découpe
force normale de pénétration, usure linéaire, le coefficient d’usure
The paper contains a review of the technical literature concerning the
detection, location, and characterization of structural damage via techniques
that examine changes in measured structural vibration response. The report
first categorizes the methods according to required measured data and analysis
technique. The report describes the development of the damage-identification
methods and summarizes the current state-of-the-art of the technology.
Cuvinte cheie: vibraţii, detectarea vibroacustică a defectelor, bare
prismatice
Keywords: vibration, vibration detection of defects, prismatic bars
The paper contains a review of the technical literature concerning the
detection, location, and characterization of structural damage via techniques
that examine changes in measured structural vibration response. The report
first categorizes the methods according to required measured data and analysis
technique. The report describes the development of the damage-identification
methods and summarizes the current state-of-the-art of the technology.
Cuvinte cheie: vibraţii, detectarea vibroacustică a defectelor, bare
prismatice Keywords: vibration, vibration detection of defects, prismatic bars
In this paper is presented the bicycle-automobile’s frontal collision
case, study in which were taken in consideration four comparison cases of the
bicycle’s and/or biker’s throw distance related with the collision speed after
different criterions (at minimum/medium/maximum collision speed; between the
bikers’ sexes; related to the bikers’ age; related with the bicycle’s types). The
bicycles’ and bikes’ masses were considered having medium values, not being
treated particular cases from this point of view.
Cuvinte cheie: bicicletă, automobil, reconstrucție accident rutier
Keywords: bicycle, automobile, accident reconstruction
The paper presents a physical model of a passenger hold by the
seatbelt. Based on this model one calculates the total movement of the
passenger during the accident, the passenger’s movement at constant speed,
his deceleration to maximal and minimal values; the passenger’s movement
related to time and the safe values of the required displacement of his chest in
case of accidents at different collision speed and also the chest movement in
the car’s habitat in order to be safe in case of accident.
Cuvinte cheie: automobil, pasager, accident rutier, siguranţă pasivă,
centura de siguranţă, reţinerea ocupanţilor, modelare
Keywords: vehicle, passenger, traffic accident, passive safety, seat
belt, keeping occupants, modeling
The paper presents some calculus algorithms of the automotive start
up capacity. The method is aimed to be used for any type of autovehicles.
Cuvinte cheie: autovehicul, demaraj, algoritmi de calcul
Keywords: autovehicle, start up, calculus algorithms
One of the most important causes that produce noise is selling body
welds elements assembled by welding. This is remedied either by soldering
points, if the position allows, or by welding as dots. If the elements are
assembled thicker, you can use pointing and arc welding, assembly because if
the elements are thin, arc welding can lead to burning material. Due to water
ingress into the body through the floor deteriorates corrosion layer material,
respectively, side and wheel arches.
Cuvinte cheie: caroserie, sudură, lucrări de reparare, metode de
sudare
Keywords: body, welding, repair work, welding methods
This paper summarizes the terms of maintenance, necessity of
maintenance in/according with technical state of motor vehicles, and the
significance of maintenance concepts concerning the technical condition of
vehicles change.
Cuvinte cheie: mentenanţă, autovehicul, stare tehnică
Keywords: maintenance, motor vehicles, technical state
Bonding materials together, is the operation whereby two or more
layers of material, overlaid by a particular rule, are linked together using
adhesives. Advantages of bonding technology are: increased productivity,
combining quality, low cost price etc. Those advantages have made this
technology be extended more and more to textiles technologies.
Cuvinte cheie: tehnologii neconvenţionale, adezivi, aderență, lipire.
Keywords: conventional technologies, adhesives, adhesive, glue
IGT process has a higher universality in terms of basic metals MB but
is particularly recommended for welding thin components, the works of great
finesse and aesthetics where junctions. The main advantages of the TIG
process are: the volume affected by the welding heat is reduced can adjusted
be precisely and widely in the amount of heat entering their components during
welding.
Cuvinte cheie: sudare, procedeul WIG, materiale de sudare
Keywords: welding, WIG process, welding materials
This document outlines the application of the time-of-flight diffraction
(TOFD) technique and/or Phased array technology for the semi-, or fully
automated ultrasonic testing of welded joints in metallic materials equal to and
above 6 mm thickness as per ISO 10863/2011. The semi or fully automated
ultrasonic testing shall be in accordance with ASME Section V, article 4 (Article
4 is a compendium of Appendixes describing the weld examination using the
Time of Flight Diffraction (TOFD) technique. Other standards describing the
same method are ASTM E-2373-04, British Standard BS7706, and European
Norm EN 583-6 (Part 6: Time-of-flight diffraction technique as a method for
detection and sizing of discontinuities) ISO 10863 – Ultrasonic testing – Use of
time-of-flight diffraction technique (TOFD). and EN 15617 „Non-destructive
testing – Time-of-flight diffraction technique (TOFD) – Acceptance levels”.
Cuvinte cheie: examinarea sudurilor, ultrasunete, examinare
ultrasonică, defectoscop, traductoare, standarde
Keywords: weld examination, ultrasound, ultrasound examination,
flaw, transducers, standards
The paper presents variants of perform ant executions of the active
parts of the dies and matrix, reported to the different procedures depending of
the modality (technology) of their intrinsic processing, respectively, depending
on materials used in manufacturing, which may influence sustainability in the
intensive use.
Cuvinte cheie: ștanțe și matrițe, material compozit, semifabricat,
electrocoroziune, anduranță
Keywords: dies and matrix, composite material, storing, electrical
discharge, endurance
Today the world is put in issue capitalizing particularly by recycling
powder waste generated in steel industries, suggesting the whole concept of
recycling them.
These powdery waste have raised issues of recovery due to
unsatisfactory grain size composition and because the content of heavy metals.
Waste powder used in experiments in this paper has undergone the process of
pelleting, followed by a hardening of these pellets respecting a diagram of
hardening. Results of the experiments were processed in Excel, resulting in a
series of graphical and analytical correlations presented for each variant.
Cuvinte cheie: deşeuri, pelete1, furnal, fier, rezistenţă la compresiune
Keywords: waste, pellets, furnace, rolling, compression resistance
In order to estimate proper metallic charge for electrical arc furnace it
was necessary to evaluate iron content in skull delivered from slag dump by
two processors (A and B)
First off all it was necessary to know if the skull from both areas has
the same content or different. Second we had to know histogram for minimum
and maxim values.
As it was taken the decision to include in metallic charge 14 % of skull
(increasing total charge with 2,8 %) with evident economical positive result –
price of scrap is 5 times higher than skull.
Cuvinte cheie: scoarța, compoziție chimică, analiza statistică,
tehnologie de elaborare a oțelului
Keywords: bark, chemical composition, statistical analysis, the steel
technology
In the article is analyzed a vapour-compression refrigeration system
using R12 refrigerant. With experimental values of the evaporating and
condensing temperatures and using the Cool Pack program, the system
performance may be evaluated. Thermodynamic performance of a refrigeration
system is defined by evaluating the cooling efficiency, which permit the
quantitative assessment of heat losses, qualitatively described by the second
principle of thermodynamics.
Cuvinte cheie: agent frigorific, eficienţă frigorifică, entalpie, freon R12,
termocupluri
Keywords: refrigerant, cooling efficiency, enthalpy, Freon R12,
thermocouples
The work present the influence of against vibration insulation for
forging hammers and theirs values of sunstroke efficiency.
Cuvinte cheie: ciocan, vibroizolare, randament, amortizare
Keywords: hammer, against vibration insulation, return, depreciation
Helicoidally cylindrical surfaces are used for releasing surfaces of cutting
tools the paper present aspects about experimental research of the kinematic
coupling using different loads and different contact angle between roll and
cylinder using a special developed for generation of the helical surfaces.
Cuvinte cheie : mişcare elicoidală, presiune de contact, unghi de contact
Keywords: helical motion, contact pressure, contact angle
The paper presents the basic characteristic at pieces manufacturing
by fine blanking.
Cuvinte cheie: structuri metalografice
Keywords: metallographic structures
The purpose of the present paper is to determine the response of
main elements and resistance structures to extreme circumstances, specifically
to action of conflagration, considering the temperature distribution inside
structure’s elements, materials characteristics – steel for this case – following
the determination of thermo-mechanic response of main elements and
resistance structures.
Cuvinte cheie: rezistenţă, temperatură, oţel, structură
Keywords: strength, temperature, steel structure
The objective of the application is to describe the rapid prototyping
stages to transform a Pelton runner from the virtual geometry created in Solid
Works software into a real part, using the Objet Desktop 30 Printer.
Cuvinte cheie: Rapid Prototyping, Pelton, alergător
Keywords: Rapid Prototyping, Pelton, runner
The paper presents the experimental stand used for experimental
research regarding the dynamic behaviour of linear hydraulic servo-motors in
the frequency domain, developed in INOE 2000-IHP, in the framework of the
NUCLEU Program, which allows obtaining of the graphical variation of the
dynamic parameters of servo system.
Cuvinte cheie: servomotoare hidraulice liniare, comportare dinamocă,
domeniul frecvenţial, stand testare, senzori şi traductoare
Keywords: linear hydraulic servomotors, dynamic behaviour,
frequency domain, test stand, sensors and transducers
In the paper is presented an experimental mechatronic device with an
optoelectronic control of movement, which was designed and manufactured in
INOE 2000-IHP Bucharest and which will be subjected on an experimental
program, in order to demonstrate its functionality and its performances and,
also, to validate the elected technical solution.
Cuvinte cheie: mecatronica, motor hidraulic liniar, control
optoelectronic, dispozitiv experimental
Keywords: Mechatronic, linear hydraulic motor, optoelectronic control,
experimental device
The paper deals with the pneumatic drive system which sorts bottles
according to their color. In my study I used the method pneumatic drive system,
the: mechatronics, pneumatic drive system sorting colored bottles, recycling,
algorithms, controller, software, languages
Cuvinte cheie: mecatronică, sistem de acţionare pneumatic, sortare
sticle colorate, recirculare, algoritmi, controler, programe, limbaje
Keywords: mechatronics, drive system pneumatic sorting colored
bottles, recycling, algorithms, controller, software, languages
For a number of complex processes such as the case treated in this
paper cold drawing, the simulation program requires a number of simplifications
of the elements that made this process.
Cuvinte cheie: ambutisare, simulare numerică, elemente finite
Keywords: drawing, numerical simulation, finite element
This paper presents modifications to the VDA 6.3 2010 edition.
Cuvinte cheie: audit de proces
Keywords: audit process
This paper presents a case study using the method of analysis
Process FMEA. Method FMEA is a method of analysis and minimizing potential
risks. So we researched all kinds of defects potentially predictable causes and
effects. Benchmark study ist ‘’front panel’’ of the washing machine 1001
Diamond T made of plastic injection.
Cuvinte cheie: Metoda FMEA, calitate preventivă, minimizarea
riscurilor, neconformități
Keywords: Method FMEA, preventive quality, minimize risk, noncompliance
The present paper is focused on the hardness of iron powder DWP
400 parts sintered in endogas. The effect of sintering parameters is studied.
There were prepared cylindrical specimens pressed at 600 MPa and sintered in
endogas at the temperature of 1120 0C and 900 0C for 30/60 minutes. Sintered
specimens were analyzed by optical microscopy, micro-hardness test and
macrohardness measurements. Increasing the temperature and duration of
sintering leads to a linear increase of hardness of specimens, influencing
strongly the density and the microstructure.
Cuvinte cheie: sinterizare, duritate, pulbere fier
Keywords: sintering, hardness, iron powder
Using milled Fe-Cr powder and introducing on these powders a small
amount of Co or Al powder, nanostructure alloys were obtained. Using X-ray
diffraction it was determined the crystallite size and the internal stress.
Williamson-Hall method was used for the crystallite size calculations. The
measurements were performed on a DRON 3 diffract meter and the data
acquisitions were performed using MATMEC IV software.
Cuvinte cheie: pulberi metalice, mori planetare, aliere mecanică
Keywords: metal powders, planetary mills, mechanical alloying
The mechanical alloying experiments were performed on a high
energy planetary ball mill. Four vials were used for powder mixtures milling.
The milling charge contains 46 steel balls having 15 mm average diameter and
100 g powder mixture. It corresponds to a charge level of ½ of the vial volume
and represents a 8:1 ball/powder ratio. The powder mixtures: Fe60Ni40, Fe50Ni50,
Fe40Ni60, were milled for 1, 2, 4, 8, 16, 32, 48 şi 64 hours. At each milling time
were taken samples for analysis (5 grams). The X-ray diffraction analysis
reveals that after 8 hours of milling the Fe peaks disappear and the Ni phase is
featured in all powder mass. The calculated crystal parameters prove that the
mechanical alloying process induces Ni structure for all powder mixtures after 8
hours of milling resulting a substitution solid solution where some Ni atoms
were replaced with Fe ones.
Cuvinte cheie: aliere mecanică, pulberi Fe Ni, moara planetară
Keywords: mechanical alloying, powder Fe Ni, planetary mill
The successful application of microalloying technique, used in the
HSLA steels elaboration by classical metallurgy, to the sintered structural steels
in order to improve their mechanical properties is determined, to a great extent,
by the homogeneity of Fe-microalloying element (Nb, Ti, or V) powder mixtures.
Therefore, its evaluation is of the maximum importance in the elaboration
process control in order to obtain the desired strengthening effect. The
possibility of application, for this purpose, of the statistical and experimental
method, respectively, is analyzed in this paper, with the reference to Fe-Nb, Fe-
Ti and Fe-V powder mixtures. Conclusions on factors affecting the homogeneity
degree, of practical applicability, are drawn on this basis.
Cuvinte cheie: oţeluri sinterizate, microaliere, proprietăţi mecanice
Keywords: sintered steels, micro, mechanical