Optimization of ultrasonic welding parameters for copper to copper joints using design of experiments

2010 ◽  
Vol 51 (1-4) ◽  
pp. 163-171 ◽  
Author(s):  
Sooriyamoorthy Elangovan ◽  
K. Prakasan ◽  
V. Jaiganesh
Keyword(s):  
Design Of Experiments ◽  
Ultrasonic Welding ◽  
Welding Parameters

Experimental Investigations on Aluminium Ultrasonic Welding Parameters

2014 ◽  
Vol 657 ◽  
pp. 306-310
Author(s):  
Lăcrămioara Apetrei ◽  
Vasile Rață ◽  
Ruxandra Rață ◽  
Elena Raluca Bulai
Keyword(s):  
Microstructural Analysis ◽  
Base Material ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Experimental Investigations ◽  
Welding Parameters ◽  
Material Structure ◽  
Welding Temperature ◽  
Wide Range ◽  
Made In

Research evolution timely tendencies, in the nonconventional technologies field, are: manufacture conditions optimization and complex equipments design. The increasing of ultrasonic machining use, in various technologies is due to the expanding need of a wide range materials and high quality manufacture standards in many activity fields. This paper present a experimental study made in order to analyze the welded zone material structure and welding quality. The effects of aluminium ultrasonic welding parameters such as relative energy, machining time, amplitude and working force were compared through traction tests values and microstructural analysis. Microhardness tests were, also, made in five different points, two in the base material and three in the welded zone, on each welded aluminium sample. The aluminum welding experiments were made at the National Research and Development Institute for Welding and Material Testing (ISIM) Timişoara. The ultrasonic welding temperature is lower than the aluminium melting temperature, that's so our experiments reveal that the aluminium ultrasonic welding process doesn't determine the appearance of moulding structure. In the joint we have only crystalline grains deformation, phase transformation and aluminium diffusion.

Determination of Ultrasonic Welding Optimal Parameters for Thermoplastic Material of Manufacturing Products

2013 ◽  
Vol 64 (1) ◽  
Author(s):  
Rashiqah Rashli ◽  
Elmi Abu Bakar ◽  
Shahrul Kamaruddin
Keyword(s):  
Electronic Device ◽  
Low Cost ◽  
Near Field ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Field Configuration ◽  
Welding Parameters ◽  
Optimal Parameters ◽  
Thermoplastic Material

Ultrasonic welding had been widely used in various manufacturing industries such as aviation, medical, electronic device and many more. It offers a continued safe operation, faster and also low cost as it able to join weld part less than one second and also simple to maintain the tooling devices. Though ultrasonic welding brings a lot of advantages in assembly especially in thermoplastic material of manufacturing product, it also has a dominant problem to be deal with. The problem in ultrasonic welding is poor weld quality due to improper selection of ultrasonic welding parameters especially in near field configuration. Thus, an optimal combination of parameters is crucial in order to produce good quality weld assembly for this configuration. In this paper, ultrasonic welding process, ultrasonic weld joint defects and determination of optimal parameters for thermoplastic material had been discussed thoroughly. 

Optimization of TIG welding parameters for 6061Al alloy using Taguchi’s design of experiments

2018 ◽  
Vol 5 (11) ◽  
pp. 23648-23655 ◽  
Author(s):  
P.K. Jayashree ◽  
S.S. Sharma ◽  
Raviraj Shetty ◽  
Ashish Mahato ◽  
M.C. Gowrishankar
Keyword(s):  
Design Of Experiments ◽  
Tig Welding ◽  
Welding Parameters ◽  
Taguchi’S Design Of Experiments

Research on the seam performance of waterproof clothing based on continuous ultrasonic welding technology

2016 ◽  
Vol 28 (2) ◽  
Author(s):  
Hui Shi ◽  
Jianping Wang ◽  
Xiaona Chen ◽  
Shunhua Luo ◽  
Lingxi Zhang
Keyword(s):  
Hydrostatic Pressure ◽  
Production Technology ◽  
Dimensional Stability ◽  
Design Methodology ◽  
Setting Time ◽  
Ultrasonic Welding ◽  
Process Efficiency ◽  
Welding Parameters ◽  
Adhesive Tape ◽  
Practical Implications

Purpose An improved waterproof seam production technology (ultrasonic welding-thermo adhesive tape sealing (USW-TATS)) was developed in this study. The technology will improve the waterproof performance of seam which has problem resulted from needle holes and thread like seam leaking and excess shrinkage. Design/methodology/approach Threadless seams were produced by ultrasonic welding (USW) with coated and lamination fabric to replace the traditional sewing process in Sewing-thermo adhesive tape sealing (S-TATS). The process efficiency was evaluated by Methods-Time Measurement (MTM). Seam performance including hydrostatic pressure, shrinkage and tear force was compared among three technologies (USW, USW-TATS and S-TATS). The effect of ultrasonic welding parameters (amplitude, roller pressure and roller speed) on the USW-TATS seam performance was investigated.SEM analysis was carried out to examine the condition and morphology of the joints cross section. Findings It was found that waterproof performance and dimensional stability of USW-TATS seam were superior to that of S-TATS seam. Tear force and hydrostatic pressure increased firstly and then decreased with the increasing of USW parameters in UAW-TATS process. Binary regression relationships were found between the USW parameters and tear force or hydrostatic pressure. Shrinkage decreased with the increasing of roller pressure and speed. Practical implications Research results can be applied to predict seam performance of waterproof clothing, reduce equipment parameters setting time and enhance product quality in industry. Originality/value A threadless production technology (USW-TATS) was proposed to improve waterproof performance and dimensional stability of outdoor clothing seams.

scholarly journals Application Features of Ultrasonic Welding

2018 ◽  
Vol 9 (1) ◽  
pp. 31-34
Author(s):  
Gyula Bagyinszki ◽  
Enikő Bitay
Keyword(s):  
Production Line ◽  
Weld Seam ◽  
Filler Metal ◽  
Welding Process ◽  
Ultrasonic Welding ◽  
Welding Parameters

Abstract The technological advantages of ultrasonic welding: (no requirement for filler metal; use of small electrical transient resistance contacts; ability to weld thin materials to thick materials) results in a helium-solid weld seam; the computer configuration of the welding parameters can easily be solved; clean and safe workflow (no sparks, flame or smoke); can be integrated into the production line. This article deals with some of the additional application features of this welding process.

scholarly journals Producing a Dissimilar Joint of Copper to Austenitic Stainless Steel by Ultrasonic Welding

2021 ◽  
Vol 4 (2) ◽  
pp. 109-112
Author(s):  
Schramkó Márton ◽  
Kovács Tünde Anna
Keyword(s):  
Stainless Steel ◽  
Sheet Thickness ◽  
Welding Process ◽  
Physical And Mechanical Properties ◽  
Test Sample ◽  
Tensile Tests ◽  
Ultrasonic Welding ◽  
Welding Parameters ◽  
Thin Sheets ◽  
Standard Size

Abstract There are several possibilities for establishing a cohesion joint between dissimilar metals. In the case of thin sheets, the ultrasonic welding process is suitable. This process can establish a cohesion joint rapidly, with a low heat input between the thin sheets. The authors have tried to determine the optimal ultrasonic welding parameters for copper and austenite stainless steel joining by using an experimental method of joining. Suitable results were obtained by welding tests due dissimilarities in the chemical, physical and mechanical properties of the copper and stainless steel. A standard size sheet thickness and test sample was used for the welding by different parameters. The parameters were refined based on the theoretical and practical knowledge during the experiments. The experimental welding was made by a Branson L20 type welder machine. The joint made by the different parameters was inspected by shearing-tensile tests (maximal force level).

scholarly journals The Influence of Technological Parameters on Durability of Products from ABS Plastic at Ultrasonic Welding

2019 ◽  
pp. 17-26
Author(s):  
S.S. Volkov ◽  
S.A. Korolev ◽  
D.S. Rozanov
Keyword(s):  
Welded Joint ◽  
Oscillation Amplitude ◽  
Heat Removal ◽  
Amplitude Distribution ◽  
Ultrasonic Welding ◽  
Optimal Choice ◽  
Welding Parameters ◽  
Technological Parameters ◽  
Welding Pressure

An ultrasonic welding method for round-shaped products made from ABS plastic is described in this paper. This method can eliminate roughness and waviness on the contact surface between the planimetric waveguide and the welded part, increase heat removal from the surface of the welded part in the subwaveguide zone and improve the efficiency of ultrasonic welding as well as the strength and quality of the welded joint. It is shown that a mushroom-shaped waveguide is the optimal choice for planimetric ultrasonic welding of ABS parts of the fan wheel type with regard to the uniformity of the oscillation amplitude distribution along the perimeter of the waveguide’s working end face. The optimal form of the waveguide’s working end face is defined that entails fixing the connecting parts relative to the waveguide’s axis along their diameter. It is established that at a certain combination of the ultrasonic welding modes for ABS plastic the rate of deformation at large welding pressures can turn out to be higher than at small pressures. This is caused by the competition of three factors: temperatures, static welding pressure and concentration of energy on the welded surfaces. It is determined that for welding ABS plastic the so-called soft modes of ultrasonic welding with small static welding pressure and oscillation amplitude of the waveguide’s end face should be used. In this case welding occurs only due to the distribution of microroughness, without dents from the waveguide on the surface of the welded material. Optimal welding parameters for ABS plastic are determined.

Researches on Manufacturing Deo Roll Balls by Ultrasonic Welding

2020 ◽  
Vol 1157 ◽  
pp. 58-72 ◽  
Author(s):  
Dan Florin Teusdea ◽  
Octavian Victor Oancă ◽  
Mircea Vodă ◽  
Nicușor Alin Sîrbu ◽  
Erwin Christian Lovasz
Keyword(s):  
Raw Materials ◽  
Ultrasonic Welding ◽  
Welding Parameters ◽  
High Productivity ◽  
Alternative Technology ◽  
Current Technology ◽  
Plastic Parts

Ultrasonic welding is a fast and economical solution for plastic parts. This article proposes Ultrasonic Welding as an alternative technology for manufacturing deodorant roll-on plastic balls. With the current technology, the manufacturing of these balls results in an uneven wall thicknesses and a large technological runner of material that needs to be grinded and reintroduced into the injection equipment.The proposed method of manufacturing these deodorant balls is to form the ball from two ball halves joined together by ultrasonic welding. This process will result in significant savings in raw materials and energy.Further improvements of welding parameters and dimensions are required prior the transfer on high productivity manufacturing lines. This technology can be assimilated into other applications where hollow balls of plastic are used.

Investigation of the Weldability of the Self-Reinforced Polypropylene Composites

2010 ◽  
Vol 659 ◽  
pp. 25-30 ◽  
Author(s):  
Zoltán Kiss ◽  
Ákos Kmetty ◽  
Tamás Bárány
Keyword(s):  
Ultrasonic Welding ◽  
The Self ◽  
Holding Time ◽  
Welding Parameters ◽  
Polypropylene Composites ◽  
Welding Machine ◽  
Reinforced Composite ◽  
Different Thickness

In the present work the weldability of self-reinforced composite was investigated. As reinforcement a fabric, woven from highly stretched split PP yarns, whereas as matrix materials of two kinds of random polypropylene copolymer (with ethylene) were used. The composite sheets were produced by film-stacking method and compression molded with different thickness (1 mm, 2 mm) with different contents at different processing temperatures keeping the holding time and pressure constant. The SRPPC sheets were welded by ultrasonic welding machine with different welding parameters. The welds were qualified by mechanical and microscopic tests. The results showed that the thermoplastic reinforcement has not got melted; therefore the reinforcement was kept the strength-increasing effect.

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