Materiały na Seminarium Instytutu Spawalnictwa, Gliwice, Ambroziak A, Koralewicz Z, Korzeniowski M, Kustroń P. Kontrola jakości. Jakpol Ambroziak, Pułtusk, Poland. 34 likes · 2 were here. Prodkujemy : mąkę żytnia typ – mąkę żytnia typ – mąkę żytnia typ “sitkowa”. anych, Przegląd Spawalnictwa, No. 5–7, , pp. 51–  Ambroziak A., Korzeniowski M., Kustron P.: Quality control of spot welds – the chal- lenge for.
|Published (Last):||26 April 2017|
|PDF File Size:||4.65 Mb|
|ePub File Size:||1.24 Mb|
|Price:||Free* [*Free Regsitration Required]|
The friction welded AlMgSi0. Abstract PDF References Article Recommendations Abstract In this article results of studies on cracks formation susceptibility in braze-welded joints of thin aluminum sheets and double-sided zinc galvanized steel sheets for car body parts made by laser brazing with high power diode laser ROFIN DL and CMT MIG-brazing, with filler material in form of powder and wire accordingly, were presented.
The microstructure in the bonding zone of the friction welded AlMgSi0. Simultaneously, the entire deformation has occurred at the aluminium side Figure 3 b. The author has been conducting some intensive researches on the friction welding of such joints, partly presented in [ 13 ].
The researchers concluded that for a good joint, an intermetallic layer, which was generally in the half radius length, with the thickness of 0. Their forming has influenced the various forms of the flash but has not caused an elimination of the intermetallic phases, on the surface of the materials being bonded Figure However, their values have been lower, probably due to the lower pressure used during the upsetting phase Table 1. For this purpose different process parameters have been used: The results of the investigations on the microhardness of such joints are shown in Figure The results of the maximum loading force, obtained in the shearing test for the investigated joints, are shown in Figure 14whereas, in Figure 15the results of shearing work, calculated for two variants of shearing patterns, andare shown.
While for joints, which have been friction welded with low friction time, there was a continuous narrow diffusion zone with a diameter of few micrometers Figure 13 a ; the joints formed at longer friction time were characterized by local thickening of the diffusion layer and discontinuities on the aluminium side Figures 13 b and 13 c. Advances in Materials Science and Engineering.
Topics Discussed in This Paper. However, they have resulted in significant length reduction of the welded elements The aluminium alloys with magnesium, especially the AlMg3 alloy, are commonly used in industries, where the higher strength properties comparing to aluminium are necessary.
On the base of the previous researches on the diffusion welding process [ 2930 ], the nickel has been selected. The surfaces of the samples for friction welding have been prepared with turning and washed in ethyl alcohol, directly before welding. The author stated that lack of the intermetallic phases probably indicated the unstable joining process, and too high thickness of the fragile intermetallic phases caused the reduction of the shear energy value.
Therefore, the measurements of the shearing work, carried out for various stages of the test, have shown that there were huge shearing work differences for the analysed joints, and they have depended on the process parameters.
In the dissertation [ 25 ], the weldability of various aluminium alloys series, and i and S25C unalloyed carbon steel 0. In this article results of studies on cracks formation susceptibility in braze-welded joints of thin aluminum sheets and double-sided zinc galvanized steel sheets for car body parts made by laser brazing with high power diode laser ROFIN DL and CMT MIG-brazing, with filler material in form of powder and wire accordingly, were presented.
View at Google Scholar M. The analysis of the aluminium-iron dual system leads to the conclusion that long time and high temperatures of the process can cause the formation of intermetallic phases. However, in the technological bending tests, bending angles within few degrees have been achieved, with a small dependence on the diameter of the bending mandrel. For this reason, the friction welded AlMg3 aluminium alloy-X10CrNiTi austenitic steel joint can successfully replace the joints formed with diffusion welding.
It has been stated that the joint was characterized by efficient tensile strength, if the width of the diffusion zone with intermetallic phases was 0. Therefore, when using the friction welding the intermetallic phases are formed, despite joining in the solid state. The results, discussed in the previous chapter, showed that joining of pure aluminium and steel, by friction welding, was possible.
Using resistance spot welding for joining aluminium elements in automotive industry
The alloying additions, which are present in aluminium alloys especially magnesiumusually aggravate the metallurgical conditions of aluminium bonding [ 19 ]. The paper presents our actual knowledge and ambrozik in joining dissimilar materials with the use of friction welding method. Another material, which has been tested as an interlayer for the joints of AlMg3 alloy-X10CrNiTi steel, was titanium.
Such joint was supposed to replace the previous mechanical bonding of the shaft and rotor, produced from these materials and used in some types of turbo boost in large turbo spawalnivtwo engines. Such behaviour may be caused that despite forming the intermetallic phases on the bound of AlMg3 alloy-X10CrNiTi steel, the low thickness of the whole additional interlayer allowed stress sppawalnictwo occurring in the joint during bending.
On joints made with optimal parameters further examinations were carried. Ambrozial attempts have been taken to obtain better properties spaawlnictwo the 42CrMo4 steel-AN40 aluminium alloy joint, by using some interlayers, formed with friction welding too. The friction welded 42CrMo4 steel-AN40 alloy joints, microstructure after the tensile test aand a microhardness pattern b according to [ 14 ]. The comparison of shearing work of the friction welded AlMg3 aluminium alloy-austenitic steel joints and the surface area of the aluminium sediment on steel according to [ 26 ].
In the industry, especially in marine, aviation, and refrigeration industries, the joints of aluminium alloys and chromium-nickel austenitic steel are applicable.
On slawalnictwo contact surface of AN40 alloy-nickel, on both sides, there was a visible discontinuous intermetallic phase separation Figure 24 b.
Leszek Łatka – Google Scholar Citations
The microstructure of the joint is shown in Figure Aluminium-Steel Joining with the welding methods of the pairs of materials, such as aluminium alloys-steel, still brings many problems. Skip to search form Skip to main content. Jessop has observed that the highest thickness of the intermetallic phases was present on the surface, in the distance of about half radius soawalnictwo the axis of the sample. The joints, analysed in the researches, have been formed with friction times of 1.