scholarly journals Dinamometer Untuk Alat Uji penarikan Kawat (Perancangan, Pembuatan dan Pengujian)

2018 ◽  
Vol 14 (1) ◽  
pp. 72
Author(s):  
Sir Anderson
Keyword(s):  
Plastic Deformation ◽  
External Force ◽  
Basic Principle ◽  
Strain Gauge ◽  
Wire Drawing ◽  
Load Cell ◽  
Laboratory Scale ◽  
Drawing Force ◽  
Electrical Quantity ◽  
Drawing Test

The basic principle of metal formation is to change shape by giving an external force so that plastic deformation occurs. One example of this formation is wire drawing. The important parameter in wire drawing is the drawing force, which is the force needed to deform the wire to produce the desired reduction. The measurement of withdrawal force is carried out through a wire drawing test equipped with a dynamometer, which consists of load cell and strain gauge. From this test, the withdrawal force can be measured as an electrical quantity that can be read using a multitester or computer. For wire drawing testing dynamometers are designed and made as measuring sensors for withdrawal forces on a laboratory scale. From the results of testing with a dynamometer the average wire drawing force for copper reduction I was 72.88 kgf, copper reduction II was 95.88 kgf and brass was 126.50 kgf. The price of this test is greater than the theoretical price

scholarly journals RANCANG BANGUN RASIO GEAR TERHADAP KECEPATAN PENGEROLAN PIPA

Infotekmesin ◽  
2018 ◽  
Vol 9 (01) ◽  
pp. 47-52
Author(s):  
Agus Suprihadi ◽  
Amin Nur Akhmadi ◽  
M. Taufik Qurohman
Keyword(s):  
Plastic Deformation ◽  
Basic Principle ◽  
Deep Drawing ◽  
Shape Change ◽  
Wire Drawing ◽  
Power Source ◽  
Type B ◽  
Work Cycle ◽  
Roller Machine ◽  
Shape Changes

The basic principle of metal formation is a process that is done by giving shape changes on the workpiece. This shape change can be done by providing an outer force resulting in plastic deformation. The application of this metal formation can be seen in some examples such as rolling, bending, forging, extruding, wire drawing, deep drawing, and so on. In the process of formation of this metal is also used tooling (bending) whose function gives style to the workpiece, and direct the change of shape. Knowing the speed of the power forwarding system on the pipe roller machine starting from the power source until power is used as the work cycle, and to know the type of belt, the length of the belt used on the pipe roll machine. From this research can be concluded that: (1) In bending the thickness of 4 mm pipe the required power is 582.4 N with power of 0.4 hp then the motor required 1 hp, the diameter of the pulley used is 2 inch for motoran and 8 inch for the pivot reducer, belt used type B with length 44 inch, (2) To reach the rotation of ± 2 rpm ie pulley diameter used with the ratio of pulley ratio is 1: 4, the reducer is used with the value I = 60 and sprocket ratio 1: 3.

Inductive Sensor for Weighing of Mass

2011 ◽  
Vol 18 (2) ◽  
pp. 323-334
Author(s):  
Janusz Lewandowski
Keyword(s):  
Ambient Temperature ◽  
Strain Gauge ◽  
Electronic System ◽  
Constant Load ◽  
Load Cell ◽  
Measuring System ◽  
Main Element ◽  
Digital Correction ◽  
Inductive Sensor ◽  
Inductive Measuring

Inductive Sensor for Weighing of Mass A new method measuring of mass in electronic system of scales has been described. The main element of this system is inductive measuring load cell, which was compared with strain gauge load cell. The aim of the paper is described advantages of the inductive measuring system of mass and explain some main problems of this system. Digital correction of the mechanical errors of the beam like: hysteresis, creep material of the beam under constant load, influence of ambient temperature was described.

Elaboration of Architectured Copper Clad Aluminium Composites by a Multi-Step Drawing Process

2018 ◽  
Vol 941 ◽  
pp. 1914-1919
Author(s):  
Florent Moisy ◽  
Antoine Gueydan ◽  
Xavier Sauvage ◽  
Clément Keller ◽  
Alain Guillet ◽  
...  
Keyword(s):  
Image Processing ◽  
Plastic Deformation ◽  
Room Temperature ◽  
Annealing Treatment ◽  
Wire Drawing ◽  
Al Composite ◽  
Microscopy Image ◽  
Deformation Level ◽  
Different Diameters ◽  
Drawing Method

Architectured copper clad aluminium composites processed by a restacking drawing method at room temperature are reported in this work. Wires were drawn to severe plastic strain without any intermediate annealing. Three different diameters were studied in order to examine the influence of a different plastic deformation level on the structure of the different wires. Thanks to image processing it has been shown that independently of the plastic deformation, inserted fibers remain continuous and are homogeneous in size and shape. Furthermore, XRD and TEM characterizations confirm that there is no significant intermetallic growth during the deformation. Thus, the improvement and/or degradation of the functional properties of the wires can be well controlled by performing an appropriate post-processing annealing treatment. Keywords: Cu/Al composite, architectured wire, drawing, microscopy, image processing

scholarly journals DESIGN OF UNDIRECT GUY WIRE TENSION METER BASED ON STRAIN GAUGE

2019 ◽  
Vol 13 (2) ◽  
pp. 111-120
Author(s):  
Agus Sasmito ◽  
Yudi Irawadi
Keyword(s):  
Tensile Stress ◽  
Design Process ◽  
Mathematical Analysis ◽  
Strain Gauge ◽  
Bending Moment ◽  
Load Cell ◽  
Wire Tension ◽  
Main Component ◽  
Design Result ◽  
Data Result

The safety of the tower is depend the tension of guy wire, where it must have the same tensile stress at all positions. To meet this requirement, the load cell guy wire is designed based on strain gauge. Load cell guy wire  is designed portable and it can detect stress of the guy wire indirectly. The main component of load cell is a beam, two hooks and a cylinder to form a bending moment force in the beam, the value of the bending moment on the beam will be directly proportional to the increase or decrease in force drag on guy wire. Design process of load cell doone using mathematical analysis, and then the load cell is calibrated by standard load cell, based on the data result of calibration is known that the stress at the guy wire load cell is close and under the yield stress of the load cell material, it is proved that load guy wire cell’s design result is safe to use.

Comparative Evaluation of Analytical Methods for the Determination of Coefficients of Friction and Stresses when Wire Rod Drawing

2018 ◽  
Vol 284 ◽  
pp. 247-252 ◽  
Author(s):  
Sergei I. Platov ◽  
V.A. Nekit ◽  
Nikolay N. Ogarkov
Keyword(s):  
Plastic Deformation ◽  
Comparative Evaluation ◽  
Method Of Characteristics ◽  
Circular Cross Section ◽  
Wire Drawing ◽  
Work Piece ◽  
Relative Height ◽  
Plane Plastic ◽  
Special Case

The article discusses the process of wire drawing of circular cross-section. The study of stresses of wire drawing in conditions of plane plastic flow was held. As theoretical framework the study was adopted the method of characteristics, a special case, having the definitive decision. Stresses during wire drawing are defined by decomposing the decision into two components of plane strain and the superposition of these decisions. The results of theoretical solution of the problem of wire drawing were used to determine the coefficients of friction on the surface of contact of the tool and the work piece during the deformation of steel with a diameter of 5.5 mm. It is recommended to use two-dimensional methods of solution in the analysis of the process of wire drawing in conditions with a high hearth of plastic deformation (with the relative height of the hearth of plastic deformation 2 and bigger). The theoretical dependences between the friction coefficients at the contact surface of the work piece and the tool was obtained. The obtained values of coefficients of friction can be used over solving the task of the wire drawing in conditions with a high hearth of plastic deformation.

Dynamic Studies on the Recurve Bow

2015 ◽  
Vol 741 ◽  
pp. 37-40
Author(s):  
Ji He Zhou ◽  
Yu Qin Shi
Keyword(s):  
Dynamic Characteristics ◽  
Strain Gauge ◽  
Dynamic Strain ◽  
Measurement Technology ◽  
Acceleration Sensor ◽  
Electrical Quantity ◽  
Dynamic Studies ◽  
Strain Process ◽  
Quantity Measurement

By utilizing the acceleration sensor and the strain gauge, the non electrical quantity measurement technology, we collected the data of the dynamic strain process in the actual shooting circumstances of athletes and get the data through the computer; exploratory proposed the dynamic characteristics of the bow.

On the Mechanics of Wire Drawing

1961 ◽  
Vol 83 (4) ◽  
pp. 523-529 ◽  
Author(s):  
C. T. Yang
Keyword(s):  
Theoretical Analysis ◽  
Shear Deformation ◽  
Coefficient Of Friction ◽  
Close Agreement ◽  
Wire Drawing ◽  
Experimental Results ◽  
Strain Gages ◽  
Drawing Force ◽  
The Coefficient Of Friction ◽  
Wire Resistance

Split-die technique was adopted to find the coefficient of friction in wire drawing directly from experiment. Simple dynamometers with wire resistance strain gages were used for measuring separating force and drawing force instead of cumbersome equipment used by former researchers. Reasonably good results were obtained. The effect of the land or parallel portion in the die on the coefficient of friction was indicated in the results. Its importance was emphasized. A theoretical equation of the drawing stress with the effect of land considered was derived. Using the coefficient of friction obtained by the split-die method, drawing stresses were calculated from the derived equation. A comparison of the theoretical and experimental drawing stresses was made. Results were tabulated and plotted. It was concluded that including the land in the analysis of wire drawing is important and further research in analyzing the shear deformation must be pursued in order to get a close agreement between theoretical analysis and experimental results.

The Superposition of Longitudinal Sonic Oscillations on the Wire Drawing Process

1968 ◽  
Vol 183 (1) ◽  
pp. 545-562 ◽  
Author(s):  
C. E. Winsper ◽  
D. H. Sansome
Keyword(s):  
Experimental Data ◽  
Torsional Oscillation ◽  
Longitudinal Mode ◽  
Wire Drawing ◽  
Drawing Process ◽  
Drawing Force ◽  
The Coefficient Of Friction ◽  
The Wire ◽  
Oscillatory Energy ◽  
Good Agreement

Part 1: Characteristics of complete wire drawing apparatus Part 1 describes the wire drawing machine, instrumentation and oscillatory apparatus designed to establish the effects of applying oscillatory energy to the wire drawing process. A theoretical consideration of the vibration of the equipment is included and compared with experimental data. Tests were performed on a 3000 lbf bull-block and the oscillatory energy was supplied in a longitudinal mode from a 3000 lbf electro-hydraulic oscillator. Equipment was designed to measure drawing force, drawing torque, amplitude of die and drum oscillation, and drawing speed. Frequencies of die oscillation in the range 0–125 Hz were studied with amplitudes up to 0.070 in peak to peak. A study of process parameters, such as natural frequency of the system, damping of the bull-block drive, torsional oscillation of the drum, and die assembly inertia, showed that the analysis was in good agreement with experimental data and that it can be used to predict the effect of oscillations on the forces and torques acting during oscillatory wire drawing. Part 2 presents experimental data obtained from mild steel, hard aluminium, stainless steel and hard copper. Results show that there is no reduction in the peak drawing force and negligible reduction in the coefficient of friction. The results also confirm that oscillatory drawing is a mechanical process of straining and unstraining the drawn wire, and that the reduction in mean force can be determined by a mechanism of force superposition.

scholarly journals Serial-aligned blank drawing at visco-plastic deformation

2019 ◽  
Vol 2019 (1) ◽  
pp. 3-7
Author(s):  
Алексей Черняев ◽  
Aleksey Chernyaev ◽  
Владимир Чудин ◽  
Vladimir Chudin ◽  
Дмитрий Тесаков ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Plastic Material ◽  
Power Method ◽  
Drawing Force

A circuit and computations of drawing technology are offered at which a drawing without thinning (convolution) and with thinning (broach) is carried out in a step matrix. Visco-plastic material is used for sheet blanks. A power method of computation with the use of discontinuous fields of traverse speeds is used. There are shown design assessments of a drawing force and material damageability.

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