scholarly journals Joining of Incompatible Polymer Combinations by Form Fit Using the Vibration Welding Process

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Michael Wolf ◽  
Tobias Kleffel ◽  
Christoph Leisen ◽  
Dietmar Drummer
Keyword(s):  
High Density Polyethylene ◽  
Test Specimen ◽  
Welding Process ◽  
High Potential ◽  
Melting Points ◽  
Polyamide 66 ◽  
Shear Tests ◽  
Polymer Metal ◽  
Close Range ◽  
Vibration Welding

The production of components consisting of various polymer types by welding is severely restricted and only possible for bonding compatible materials with melting points in a close range. Several modifications, such as the cross-linking of one joining partner, allow for circumventing the restrictions regarding the melting points but do not help in joining bonding incompatible materials. Investigations of dissimilar material combinations, especially from polymer-metal hybrid structures, show a high potential of connections based on form fits. Within the scope of this paper, the possibility of joining incompatible polymer combinations, such as polyamide 66 and high-density polyethylene, by micro form fit using the vibration welding process is analyzed. For this purpose, the generated bonding strength of the test specimen was determined by shear tests. Furthermore, the undercuts of the generated prestructures and the resulting bond of the test specimen were examined microscopically by computer-tomography. These investigations depict the high potential of joining incompatible polymer combinations by form fit in the vibration welding using prestructuring to generate undercuts.

Influence of radiation cross-linking of polyamide 66 on the characteristics of the vibration welding process

2015 ◽  
Vol 55 (11) ◽  
pp. 2493-2499 ◽  
Author(s):  
Christoph Leisen ◽  
Markus Menacher ◽  
Dietmar Drummer
Keyword(s):  
Welding Process ◽  
Cross Linking ◽  
Polyamide 66 ◽  
Vibration Welding

scholarly journals Studies and Research on the Behavior of Polyethylene when Electrofusion Welding Fittings to High Density Polyethylene Pipes

2021 ◽  
Vol 58 (1) ◽  
pp. 85-98
Author(s):  
Eugen Avrigean
Keyword(s):  
High Density Polyethylene ◽  
Welding Process ◽  
High Density ◽  
Polyethylene Pipes ◽  
The Way

This aim of this paper is to perform a study on the way the material of the fittings that can be welded through eletrofusion on polyethylene pipes withstands. The process is observed by means of the thermal and fast cameras. Also we intend to analyze the way the assembly consisting of the polyethylene fitting and pipe behaves during welding. The stresses caused by the welding process are observed, as well as the concurrent welding of the tapping tee and the branch saddle tee.

scholarly journals KARAKTERISTIK SIFAT MEKANIS ANTARA TIGA PRODUK MANUFAKTUR ELEKTRODA E6013

2019 ◽  
Vol 3 (1) ◽  
pp. 40-45
Author(s):  
Basori Basori ◽  
Ferry Budhi Susetyo
Keyword(s):  
Impact Strength ◽  
Test Specimen ◽  
Impact Test ◽  
Surface Hardness ◽  
Welding Process ◽  
Hardness Test ◽  
Bottom Plate ◽  
Weld Deposit ◽  
Welding Electrode ◽  
The Impact

The type of electrode used in the SMAW process has many types, such as E 6010, E 6011, E 6012, E 6013, E 6020, E6027. In this case the type E 6013 is the most widely used. Certainly the type E 6013 is produced by different manufacturers as well. From penelurusan researchers of this type have different prices in accordance with companies that sell it. For that reason researchers are interested to compare the three manufacturing outputs for the type E 6013 in terms of its mechanical properties. Making a specimen welding electrode cut material to be used. then sandpaper the material that has been cut so that no remaining pieces are still attached. The next step to do the welding process with three types of E6013 elekroda. The welding is carried out until it reaches the layer layer 10 mm thickness, then the bottom plate is discarded and the weld deposit deposits only The impact strength and surface hardness value are inversely proportional. For the impact test, the E1 electrode sample specimen has the highest impact strength value and the E3 electrode sample specimen has the lowest impact strength value. While on the hardness test specimen E3 electrode sample has the highest hardness value and sample specimen E1 electrode has the lowest hardness value. This can prove that the harder the object is the more brittle the object.

Optimization of Welding Process Parameters in Novel Friction Stir Welding of Polyamide 66 Joints

2019 ◽  
Vol 969 ◽  
pp. 828-833 ◽  
Author(s):  
R. Nandhini ◽  
R. Dinesh Kumar ◽  
S. Muthukumaran ◽  
S. Kumaran
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Process Parameters ◽  
Welding Process ◽  
Polyamide 66 ◽  
Friction Stir ◽  
Response Characteristics ◽  
Tool Shoulder ◽  
Stereo Microscope ◽  
Friction Plate

The friction stir welding of polyamide 66 with a specially modified tool is studied. A variation of the conventional friction stir welding is investigated by incorporating a friction plate for the purpose of heating the polymer in the course of welding process through the tool shoulder. This in turn, improves the efficiency of the weld. The association of the welding process parameters and the weld performance has been investigated by the grey relational analysis with multi response characteristics like weld tensile strength, percent elongation and hardness. Macrostructure of the weld joint cross section has been explored by Stereo microscope. The maximum weld tensile strength of 63 MPa and a Shore hardness of 60 D at the weld nugget are obtained. The hardness profiles of the welded samples have been analyzed in this investigation.

Welding of Aluminum to DP600 Steel Plates by Refill Friction Stir Spot Welding Process (Refill FSSW): Preliminary Results

2014 ◽  
Vol 1082 ◽  
pp. 123-132 ◽  
Author(s):  
Roger Navarro Verastegui ◽  
José Antonio Esmerio Mazzaferro ◽  
Cíntia Cristiane Petry Mazzaferro ◽  
Telmo Roberto Strohaecker ◽  
Jorge Fernandez Dos Santos
Keyword(s):  
Spot Welding ◽  
Rotation Speed ◽  
Welding Process ◽  
Steel Plates ◽  
Mechanical Resistance ◽  
Shear Tests ◽  
Friction Stir ◽  
Lap Shear ◽  
Substantial Change ◽  
Tool Rotation

The main objective of the current work was to produce sound Refill FSSW joints between AA6181-T4 aluminum and DP600 steel plates. The steel plates were used in two different surface conditions: with and without galvanized surface layer. The Taguchi statistical method was used to find out the set of parameters indicated to produce joint with higher mechanical resistance. Then, the possibility of joining these dissimilar metals using the Refill FSSW process was verified. Tool rotation speed and welding time were varied to observe its effect over the joint behavior. The results of lap shear tests showed that galvanized layers do not cause any substantial change on the final joint mechanical resistance, even though different joining mechanisms had been observed.

Surface Topography Changes in Polymer-Metal Sliding—II

1983 ◽  
Vol 105 (4) ◽  
pp. 526-531 ◽  
Author(s):  
V. K. Jain ◽  
S. Bahadur
Keyword(s):  
Surface Roughness ◽  
Standard Deviation ◽  
High Density Polyethylene ◽  
Surface Profile ◽  
Data Acquisition System ◽  
Radius Of Curvature ◽  
Roughness Parameters ◽  
Poly Vinyl Chloride ◽  
Polymer Metal

The variation in the surface topographical parameters for the case of sliding between high density polyethylene and poly(vinyl chloride) pin ends and a steel disk periphery was investigated. Sliding surface profile ordinate data were obtained at 2μm intervals using a data acquisition system, both along and perpendicular to the direction of sliding. A number of surface roughness parameters, viz., the r.m.s. and c.l.a. roughness, the slope, density, and radius of curvature of asperities, the standard deviation and distribution of profile ordinates, slopes, radii of curvatures and heights of asperities were calculated using a Fortran IV computer program. The analysis showed that the surface parameters undergo a marked variation during the early part of sliding, but the variation is statistically insignificant during the later part. It was found that the standard deviation of peak heights can be approximated by the r.m.s. surface roughness.

Post-crosslinking behavior of radiation crosslinked polyamide 66 during vibration welding

2016 ◽  
Vol 56 (7) ◽  
pp. 735-742 ◽  
Author(s):  
Christoph Leisen ◽  
Andreas Seefried ◽  
Dietmar Drummer
Keyword(s):  
Polyamide 66 ◽  
Vibration Welding
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