scholarly journals Prediction Model of the Resulting Dimensions of Welded Stamped Parts

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3062
Author(s):  
Milan Kadnár ◽  
Peter Káčer ◽  
Marta Harničárová ◽  
Jan Valíček ◽  
Mirek Gombár ◽  
...  
Keyword(s):  
Prediction Model ◽  
Automotive Industry ◽  
Welding Parameters ◽  
Experimental Measurements ◽  
Final Size ◽  
Specific Component ◽  
Common Part ◽  
Specific Dimension ◽  
Partial Elimination

The combination of stamping and subsequent welding of components is an important area of the automotive industry. Stamping inaccuracies affect the final size of the stamping and the welded part. In this article, we deal with a specific component that is produced by such a procedure and is also a common part of the geometry of a car. We focused on the possibility of using a negative phenomenon—deformation during welding—on the partial elimination of inaccuracies arising during stamping. Based on the planned experiment, we created a prediction model for the selected part and its production, with the help of which it is possible to determine suitable welding parameters for a specific dimension of the stamping and the required monitored dimension of the welded part. The article also includes the results of additional experimental measurements verifying the accuracy of the model and prediction maps for practice.

scholarly journals Analysis and Development of a Failure Prediction Model for Electrical Terminals Used in the Automotive Industry

2020 ◽  
Vol 51 ◽  
pp. 207-214
Author(s):  
F.J.G. Silva ◽  
Luísa Morgado ◽  
A. Teixeira ◽  
J.C. Sá ◽  
L.P. Ferreira ◽  
...  
Keyword(s):  
Prediction Model ◽  
Automotive Industry ◽  
Failure Prediction

Experimental Measurement of Alford’s Force in Axial Flow Turbomachinery

1984 ◽  
Vol 106 (3) ◽  
pp. 585-590 ◽  
Author(s):  
J. M. Vance ◽  
F. J. Laudadio
Keyword(s):  
Prediction Model ◽  
Experimental Measurement ◽  
High Speed ◽  
Aerodynamic Force ◽  
Axial Flow ◽  
Experimental Measurements ◽  
Test Apparatus ◽  
Rotor Speed ◽  
Flow Conditions ◽  
Flow Test

This paper presents the results of experimental measurements made on a small, high-speed, axial-flow test apparatus to verify the existence of Alford’s force and to investigate the validity of his mathematical prediction model. The measurements show that the cross-coupled aerodynamic force is linearly proportional to rotor eccentricity, and to stage torque, as predicted by Alford’s theory. However, it was found that the force is also speed-dependent, and that the inlet flow conditions to the stage have a pronounced effect. For some special combinations of rotor speed and stage torque, the direction of the force is reversed.

scholarly journals On-Line Spot Welding Quality Prediction with Analysis of Welding Parameters

2020 ◽  
Vol 3 (1) ◽  
pp. 127-140
Author(s):  
Emin Cantez ◽  
İsmail Atalay ◽  
Oğuz Alper İsen ◽  
Serkan Aydın
Keyword(s):  
Machine Learning ◽  
Automotive Industry ◽  
Spot Welding ◽  
Welding Parameters ◽  
Quality Prediction ◽  
Welding Quality ◽  
Important Place ◽  
Machine Learning Methods ◽  
On Line

Spot welding is one of the metal joining technologies and has an important place especially in the automotive industry. A passenger car has average 5000 spots. Destructive inspection is carried out at certain periods to check these spots. However, not all parts can be checked. In this work, welding parameters were collected and analyzed. By applying different machine learning methods, the quality of the spot welding was tried to be estimated and the results were compared.

Developing laser beam welding parameters for the assembly of steel SLM parts for the automotive industry

2018 ◽  
Vol 24 (8) ◽  
pp. 1288-1295 ◽  
Author(s):  
Thiemo Valentin Fieger ◽  
Maximilian Ferdinand Sattler ◽  
Gerd Witt
Keyword(s):  
Laser Beam ◽  
Automotive Industry ◽  
Laser Beam Welding ◽  
Welding Parameters ◽  
Content Type ◽  
Steel Sheets ◽  
Novel Approach ◽  
Metal Sheets ◽  
Cold Rolled ◽  
Parameter Ranges

Purpose This paper aims to identify issues with joining selective laser melting (SLM) steels with conventional cold rolled steels through remote laser beam welding. Design/methodology/approach A novel approach for substituting conventional cold rolled metal sheets with SLM metal sheets, made of 316L and 18-Ni 300, is presented. The characteristics of the interaction of wrought and SLM materials are described, and joining benchmark parameters are presented and compared to known existing joining results. Finally, the joints are assessed in line with automotive specifications. This research also addresses the importance of joining technologies for the implementation of SLM as a full-fledged manufacturing technology for the automotive industry. Findings New parameter ranges for laser beam welding of SLM steels are defined. Research limitations/implications This research is limited to the examined steels and the used machines, parameters and equipment. Practical implications The presented benchmark parameters are expected to be useful for designers, product developers and machine operators. Originality/value Little knowledge is available about the behavior of SLM materials and their suitability for assembly processes. Novel information about SLM steels and their interaction with conventionally produced steel sheets is presented.

Influence of Welding Parameters on the Quality of Resistance Spot Welded Joints of DP600 Steels

2014 ◽  
Vol 635 ◽  
pp. 143-146 ◽  
Author(s):  
Ľuboš Kaščák ◽  
Emil Spišák ◽  
Ivan Gajdoš
Keyword(s):  
Automotive Industry ◽  
Automobile Industry ◽  
Welded Joints ◽  
Spot Welding ◽  
Welding Current ◽  
High Strength ◽  
Welding Parameters ◽  
Resistance Spot ◽  
Resistance Spot Welds ◽  
Spot Welded

Advanced high-strength dual-phase steel was developed specifically for automotive industry in order to benefit from its excellent formability and great crash absorption ability in comparison with conventional AHSS. Resistance spot welding is the dominant and effective method of joining metal sheets in automobile industry. After spot welding, important changes occur in mechanical and metallurgical properties of the spot welded areas and heat affected zones. The investigation into these changes is very important for safety, which depends on the strength of the welded joints. Weldability of the DP steel is one of the key factors governing its application in automotive industry. The influence of the primary welding parameters, especially welding current, on the weld quality was investigated by testing microhardness and tensile shear load bearing capacity of resistance spot welds of DP600 steel sheets.

Adhesive Bond Discrepancies Identification with Hybrid Dynamic Parameter Method

2011 ◽  
Vol 121-126 ◽  
pp. 1239-1243
Author(s):  
Xin Zhao ◽  
Xin Min Lai ◽  
Yan Song Zhang ◽  
Guan Long Chen ◽  
P.C Wang
Keyword(s):  
Automotive Industry ◽  
Adhesive Bonding ◽  
Cost Effective ◽  
Adhesive Bond ◽  
Welding Parameters ◽  
Inspection System ◽  
Parameter Method ◽  
Dynamic Resistance ◽  
Production Environment ◽  
Inspection Method

With the implementation of crash-toughened adhesives in automotive industry, adhesive bonding has become one effective joining technology instead of resistance spot welding especially for AHSS materials because of its better fatigue performance and greater flexibility. However, while chisel test has been widely used for resistance weld inspection, no practical inspection method is available for adhesive bond discrepancies identification. The inspection method we need for use in a high-volume, low-cost production environment should be fast, convenient, nondestructive, cost-effective, and able to effectively assure some minimum acceptable level of joint quality. The method we finally conducted was based on the weld-bonding process of different adhesive bonding joints by acquiring and analyzing the dynamic welding parameters’ signal curves such as the electrode displacement and dynamic resistance from different sensors installed onto the welding gun. Based on the integrated inspection system, lots of experiments and analysis showed that this inspection method is basically feasible, that is, it could identify different adhesive bond discrepancies qualitatively and accurately. Especially, the on-line inspection is conducted before the complete curing of joints in paint shop. If the inspection results are nonideal and some discrepancies are detected, the further repairing work is much easier and cost-effective. So the inspection method has a good potential especially applied in production line. The findings in this study provide the guidelines for using adhesive bonding AHSS materials in automotive industry.

scholarly journals Error Modeling and Experimental Validation of a Planar 3-PPR Parallel Manipulator With Joint Clearances

2012 ◽  
Vol 4 (4) ◽  
Author(s):  
Guanglei Wu ◽  
Shaoping Bai ◽  
Jørgen A. Kepler ◽  
Stéphane Caro
Keyword(s):  
Prediction Model ◽  
Parallel Manipulator ◽  
Experimental Validation ◽  
Upper Bounds ◽  
Error Modeling ◽  
Error Prediction ◽  
Experimental Measurements ◽  
Modeling And Analysis ◽  
Planar Parallel Manipulator ◽  
Joint Clearances

This paper deals with the error modeling and analysis of a 3-PPR planar parallel manipulator with joint clearances. The kinematics and the Cartesian workspace of the manipulator are analyzed. An error model is established with considerations of both configuration errors and joint clearances. Using this model, the upper bounds and distributions of the pose errors for this manipulator are established. The results are compared with experimental measurements and show the effectiveness of the error prediction model.

Effect of welding on the fatigue strength of welded joints using the GMAW process in transformation induced plasticity steels (TRIP) used in the automotive industry

2012 ◽  
Vol 1381 ◽  
Author(s):  
Victor Lopez ◽  
Arturo Reyes ◽  
Patricia Zambrano ◽  
Joaquín Del Prado
Keyword(s):  
Automotive Industry ◽  
Trip Steel ◽  
Fatigue Testing ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
Fatigue Tests ◽  
Lap Joints ◽  
Welding Parameters ◽  
Trip Steels ◽  
Metal Arc Welding

ABSTRACTWelding of TRIP steels are one of the technical challenges in the successful application of AHSS in chassis structures. Gas Metal Arc Welding (GMAW) is a common welding process used in the automotive industry, for joining mild steels. TRIP steel; however, do not offer the same ease of welding, and process control welding parameters is more critical. The welding parameters window represents the range of acceptable process parameters, primarily control of heat inputs, to obtain an acceptable weld. As a result, the effects of the heat input variations are greater and TRIP steel has a narrower welding parameters window in which acceptable welds can be made. Mechanical properties of the lap joints of TRIP 780 steel 2.8 mm thickness was analyzed, fusion welds were evaluated using fatigue tests on these joints for different heat inputs. Fatigue testing was conducted under a different number of nominal stress ranges to obtain the S/N curves of the weld joints.

Parameters of Laser Welding and their Influence of Weld Seam

2015 ◽  
Vol 818 ◽  
pp. 260-263
Author(s):  
Peter Balog ◽  
Janette Brezinová ◽  
Peter Pastorek
Keyword(s):  
Laser Welding ◽  
Automotive Industry ◽  
New Technologies ◽  
Beam Quality ◽  
Laser System ◽  
Base Material ◽  
Lap Joints ◽  
Welding Parameters ◽  
Beam Diameter ◽  
Butt Welding

Lap joints are most used joints in automotive industry. These types of welds are usually created by spot welding, but new technologies who came to automotive industry considerably do weld process faster. Paper deals with laser welding parameters and their influence of weld seams. The parameters of welding are readjusting according to shape of weld, impurities of surface and gap. Steel S500MC with thickness of 1.0 and 2.2 mm was used as the base material. For welding was used fiber laser Ytterbium Laser System YLS with power of 6000 watt from IPG Company. Research was oriented on changing weld parameters and their influence of welds quality. It was found that butt welding joints are sensitive to gap and the gap tolerances which in turn is dependent on material thickness, beam diameter, welding speed and beam quality.

scholarly journals Application of a device for the production of electrovalves by High Speed Friction Welding HSFW and FSW welding

2019 ◽  
Vol 91 (11) ◽  
pp. 33-40
Author(s):  
Damian Miara ◽  
Jolanta Matusiak ◽  
Adam Pietras ◽  
Mateusz Świetlik ◽  
Saverio Zitti
Keyword(s):  
Mechanical Properties ◽  
Automotive Industry ◽  
Friction Welding ◽  
High Speed ◽  
Welding Parameters ◽  
Innovative Technologies ◽  
Machining Center ◽  
Innovative Solution ◽  
The Creation ◽  
Selection Of

In order to meet the current requirements of the automotive industry, associated with the creation of a machining center for the production of cylindrical welded and turned components for the construction of solenoid valves, innovative technologies are needed for joining different materials of construction. The article presents the results of the research on the applicability, production of steel electrovalves elements in the AISI303 and 11SMnPb30 grades, an innovative solution consisting in the combination of HSFW high speed friction welding and friction welding using the FSW method. As part of the research, inter alia, a welding station, selection of the shape and dimensions of tools, selection of welding parameters for the HSFW / FSW method, and tests of mechanical properties of the resulting joints were carried out. The obtained results indicate that the obtained connections are characterized by high and reproducible quality.

Sign in / Sign up

Export Citation Format

Share Document