Investigation on Mechanical Behavior of Clinched Joint Using Extensible and Flat Die Techniques

2016 ◽  
Author(s):  
Xiaolan Han ◽  
Shengdun Zhao
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Magnesium Alloys ◽  
Automotive Industry ◽  
Weight Reduction ◽  
Structure Optimization ◽  
Body Structure ◽  
Lightweight Materials ◽  
Mechanical Clinching

Lightweight materials, manufacturing technology and the car body structure optimization are the three main approaches to achieve the lightweight constructions. The lightweight materials, such as aluminum or magnesium alloys, are widely utilized in the automotive industry for the weight reduction. Mechanical clinching is used to connect the lightweight materials. In this study, the sheets were joined by the extensible die clinching and flat-clinching. The tensile strength and shear strength of the aluminum alloy 5052 were investigated by the two different tools. Compared with the extensible die clinching, both the tensile strength and shear strength of the clinched joint produced with flat-clinching is higher. And the tensile strength of the clinched joint is up to 54% higher than that of the extensible die clinching.

Joining Techniques Like Welding in Lightweight Material Structures

2022 ◽  
pp. 121-152
Author(s):  
Aytekin Ulutaş
Keyword(s):  
Automotive Industry ◽  
Fuel Economy ◽  
High Volume ◽  
Body Structure ◽  
Lightweight Materials ◽  
Performance Targets ◽  
Industrial Use ◽  
Industry Needs ◽  
Metallic Panels ◽  
Car Body Structure

In order to take more stringent measures in fuel economy and achieve the determined performance targets, the automotive industry needs to reduce the weight of the vehicles it produces. For this reason, all automobile manufacturers have determined their own strategies. Some manufacturers use lighter aluminum, magnesium, and composite components in their cars. In this study, the joining techniques of lightweight materials such as welding and the processes of their industrial use have been examined. There is currently no single technology that can combine all metallic panels in a car body structure. However, it is known that various joining technologies are used together. With the potential to combine certain combinations of steel and aluminum, manufacturers and scientists continue to work to identify technologies with the highest potential for lightweight joining and put them into use in high-volume automobile production. Therefore, it is important to examine the weldability of light materials such as magnesium, titanium, and aluminum.

ANALISIS KEKUATAN TARIK LOGAM PADUAN Al-Cu-Mg SEBAGAI DUDUKAN SHOCK ABSORBER SEPEDA MOTOR

2020 ◽  
Vol 8 (2) ◽  
pp. 67-72
Author(s):  
Riri Sadiana ◽  
Deni Putra ◽  
Wahyu Hidayat
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Magnesium Alloys ◽  
Shock Absorber ◽  
Ferrous Metal ◽  
Research Process ◽  
Al Alloys ◽  
Alloy Material ◽  
Swing Arm

Aluminum is a non-ferrous metal that has good thermal conductivity and is widely used in various mechanical machinery systems. Efforts to obtain additional mechanical strength from aluminum can be combined with Cu, Mg, Si, Mn, Ni and so on. This research was made to prepare a Motorcycle Shock Absorber that is useful as a pedestal and handle shock breakers against the swing arm, with aluminum alloy material (Al), copper (Cu), and magnesium (Mg). The purpose of this research is to know the tensile strength and know the value of the strain. The method of this research process is aluminum alloy with a variation of Specimen 1 ratio is 3% copper and 7% magnesium, for Specimen 2 replacement is 5% copper and 5% magnesium, and the variations that support Specimen 3 are 7% copper and 3% magnesium. From the results of this study, the tensile strength and strain values ​​obtained in specimen 1 were 125.5 MPa and 3.56%. For specimen 2 the tensile strength and strain values ​​were 150 Mpa and 3.42%. While the specimens of 100% tensile strength and strain are 137 Mpa and 7.48%. The best results from copper and magnesium alloys are Al alloys of 90%, Cu 5% and Mg 5%, with a tensile strength value of 150 MPa and a strain value of 3.42%.

Application of Energy-Saving Magnesium Alloy in Automotive Industry

2013 ◽  
Vol 734-737 ◽  
pp. 2244-2247 ◽  
Author(s):  
Chun Ping Du ◽  
Dao Fen Xu
Keyword(s):  
Magnesium Alloy ◽  
Energy Saving ◽  
Fuel Consumption ◽  
Magnesium Alloys ◽  
Automotive Industry ◽  
Reduce Fuel Consumption ◽  
Research Focus ◽  
Lightweight Materials ◽  
Fuel Consumption And Emissions

Reducing the weight of a vehicle, which helps to reduce fuel consumption and emissions by a large extent, has become a research focus in the automotive industry. Application of magnesium alloy lightweight materials is one of the most lightweight methods. This paper introduces the characteristics of magnesium alloys and reviews the application of magnesium alloys in automotive industry at present.

scholarly journals Investigation of the Restored Joint for Aluminum Alloy

Metals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 97 ◽  
Author(s):  
Chao Chen ◽  
Huiyang Zhang ◽  
Hao Peng ◽  
Xiangkun Ran ◽  
Qing Pan
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Mechanical Behavior ◽  
Material Flow ◽  
Shear Force ◽  
Flow Mode ◽  
Thin Walled Structures ◽  
Mechanical Clinching ◽  
Restoring Forces ◽  
Joint Material

In recent years, the mechanical clinching method plays an increasingly important role in the building of thin-walled structures. The clinched joint can be employed to join the lightweight materials. Compared with other joining methods, the clinched joint has better mechanical behavior. However, the clinched joint may be deformed during use when it bears a high shear force. In this research, a process to join aluminum alloy and restore deformed joint was proposed and investigated. The clinched joint was deformed in the deforming process. Then, a customized rivet and two flat restoring tools were utilized for restoring the deformed joint to join aluminum alloy. Different restoring forces such as 45, 40, 35, 30, 25, and 20 kN were employed to produce diverse restored joints. Some shearing tests on the restored joint were utilized for understanding joint material flow, mode of failure, thickness of neck, shear strength, and absorption of energy. The thickness of neck can be increased in restoring process, which contributes to improve the shear strength. The rivet embedded in a pit also helps restored joint bear shear force, so all of the restored joints have higher absorption of energy and shear strength than the clinched joints. The restoring process effectively restores the deformed joint to obtain better mechanical behavior.

Microstructure and Hemming Properties of AA6016 Aluminum Alloy Sheets

2011 ◽  
Vol 465 ◽  
pp. 451-454 ◽  
Author(s):  
Aleksandar Davidkov ◽  
Roumen H. Petrov ◽  
Vitaliy Bliznuk ◽  
Petar Ratchev ◽  
Peter De Smet ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Chemical Composition ◽  
Aging Time ◽  
Automotive Industry ◽  
Weight Reduction ◽  
Natural Aging ◽  
Common Environment ◽  
Environment Friendly ◽  
Laboratory Conditions ◽  
Aluminum Sheets

The use of Al-Mg-Si-(Cu) heat treatable 6xxx alloys is steadily increasing in the automotive industry. The possibility of weight reduction of the cars in combination with the good formability and high in-service dent resistance of these alloys, make them a favorable material for body panel applications. One of the most common, environment-friendly and easy to perform processes used to join aluminum sheets, is the hemming joining operation. This operation heavily relies on the bendability of the sheets, because they are bent to an angle of 180° over of a radius equal to their thickness. Tearing or cracking of the outer bent surface are often very common. In this study we attempt to understand the relations between the microstructural features of the sheets and their hemming behavior. The hemming experiments are performed in laboratory conditions and the results are discussed together with the data obtained from crystallographic, microstructural and textural investigations. Relations between the hemming appearance, chemical composition, natural aging time and dispersoid’s density are found and discussed.

Evaluation of Perforation Resistance of Magnesium Alloy by Hypervelocity Impact

2008 ◽  
Vol 385-387 ◽  
pp. 129-132 ◽  
Author(s):  
Ryo Kubota ◽  
Akira Shimamoto ◽  
Daiju Numata ◽  
Kazuyoshi Takayama
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloy ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Hypervelocity Impact ◽  
Impact Behavior ◽  
Perforation Hole ◽  
External Shell ◽  
Automotive Parts ◽  
The Impact

Magnesium alloy is the lightest metal that is used as a structural material. It has a higher specific tensile strength and specific stiffness than Iron and Aluminum alloy, and the dent is not caused easily from Iron and Aluminum alloy at the impact. Therefore, Magnesium alloy is widely used in many areas, especially as an external shell of a mobile device and automotive parts which replaces iron and plastic, etc., and its demand is expected to grow in the future. In this paper we studied the hypervelocity impact with a ballistic range to clarify the characteristic of Magnesium alloys which had such a characteristic. The effect of impact velocity, temperature and the size of perforation hole were investigated experimentally. The perforation resistance of Magnesium alloys and their impact behavior were characterized.

Selection of Materials for Weight Reduction in Sports Cars

2019 ◽  
Vol 1152 ◽  
pp. 73-82
Author(s):  
Daniel Zancanella de Camargo ◽  
Antonio Carlos Barbosa Zancanella ◽  
Luiz Rafael Resende da Silva ◽  
Rômulo Maziero ◽  
Bruno Dorneles de Castro ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Automotive Industry ◽  
Weight Reduction ◽  
Fiber Composites ◽  
Previous Method ◽  
Carbon Steels ◽  
Pollutant Emissions ◽  
Carbon Fiber Composites ◽  
Vehicle Performance ◽  
Selection Of

The need for studies aiming at the selection of materials for such application is preponderant, be-cause a large increase in the focus on vehicle weight reduction by the automotive industry in recent years. In environmental and commercial terms, this reduction provides lower energy consumption and better vehicle performance, as well as limiting pollutant emissions. The present work has the objective to select the best materials in substitution of the metals and glass used in doors, hood and windows, respectively, of sports cars to decrease the weight/power ratio and consequently improvement of performance. With the aid of Ashby maps simulated through the CES EduPackTM 2018 program, maximizing the limit of tensile strength and minimizing density, it was possible to analyze that carbon fiber composites obtained values of merit index of up to eleven times greater than the value obtained by carbon steels. Already in substitution of the glass, the acrylic obtained a index of merit about three times greater. At the same time, the tensile strength, fracture toughness, density and cost of the possible materials obtained in the previous method were obtained through the Pugh matrix, the exchanges for composites of glass fiber and polycarbonate obtained outstanding responses.

Evaluation of applicability of new aluminum alloy 1565ch in automotive industry

2018 ◽  
pp. 40-46
Author(s):  
Ye. V Aryshenskiy ◽  
◽  
S. V. Guk ◽  
E. E. Galiyev ◽  
A. M. Drits ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Automotive Industry

AMBRALOY 928

Alloy Digest ◽  
1958 ◽  
Vol 7 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
General Corrosion ◽  
Copper Aluminum

Abstract AMBRALOY-928 is a copper-aluminum alloy having high strength, hardness and excellent resistance to general corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: Cu-69. Producer or source: American Brass Company.

CENTRI-CAST GRAY IRON 50

Alloy Digest ◽  
1981 ◽  
Vol 30 (8) ◽  
Keyword(s):  
Tensile Strength ◽  
Shear Strength ◽  
Physical Properties ◽  
Machine Tools ◽  
Heat Treating ◽  
Gray Iron ◽  
Centrifugally Cast ◽  
Wide Range ◽  
Nominal Tensile Strength ◽  
Cast Gray Iron

Abstract CENTRI-CAST GRAY IRON 50 is a centrifugally cast gray iron with a nominal tensile strength of 50,000 psi. It is cast in the form of tubing which has a wide range of uses in applications where size and shape are of paramount importance and freedom from pattern cost is an important consideration. Among its many applications are farm machinery, seals, bushings, machine tools and general machinery uses. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on casting, heat treating, machining, and surface treatment. Filing Code: CI-51. Producer or source: Federal Bronze Products Inc..

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