scholarly journals Development of an Electrical Resistance Sensor from High Strength Steel for Automotive Applications

Sensors ◽  
2019 ◽  
Vol 19 (8) ◽  
pp. 1956 ◽  
Author(s):  
Kosec ◽  
Kuhar ◽  
Kranjc ◽  
Malnarič ◽  
Belingar ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Electrical Resistance ◽  
High Strength Steel ◽  
High Strength ◽  
Measured Data ◽  
Microstructural Properties ◽  
Automotive Applications ◽  
Data Logger ◽  
Corrosion Sensor ◽  
Monitoring Process

This work focuses on a demonstration of the monitoring of corrosion processes taking place in high strength steel in automotive applications. This is performed by means of a corrosion sensor, which operates as an electrical resistance sensor. It was developed from the same type of material that is used for the high-strength steel parts produced in the automotive industry. Using the sensor, real time corrosion processes can be measured. It is attached to a location inside the vehicle’s engine and is equipped with a data logger, which enables wireless transfer of the measured data. In this study the development, operation, and evaluation of the monitoring process are presented. Corrosion estimation is verified by means of electrochemical methods. A metallographic investigation was included in order to verify the similarity between the microstructural properties of the sensor and those of the as-received high-strength steel sheet.

scholarly journals Advanced High Strength Steel in Auto Industry: an Overview

2014 ◽  
Vol 4 (4) ◽  
pp. 686-689 ◽  
Author(s):  
N. Baluch ◽  
Z. M. Udin ◽  
C. S. Abdullah
Keyword(s):  
Automotive Industry ◽  
High Strength Steel ◽  
Low Cost ◽  
High Strength ◽  
Direct Result ◽  
Advanced High Strength Steel ◽  
Geometrical Form ◽  
Cost Efficient ◽  
Safety Attributes ◽  
Selection Of

The world’s most common alloy, steel, is the material of choice when it comes to making products as diverse as oil rigs to cars and planes to skyscrapers, simply because of its functionality, adaptability, machine-ability and strength. Newly developed grades of Advanced High Strength Steel (AHSS) significantly outperform competing materials for current and future automotive applications. This is a direct result of steel’s performance flexibility, as well as of its many benefits including low cost, weight reduction capability, safety attributes, reduced greenhouse gas emissions and superior recyclability. To improve crash worthiness and fuel economy, the automotive industry is, increasingly, using AHSS. Today, and in the future, automotive manufacturers must reduce the overall weight of their cars. The most cost-efficient way to do this is with AHSS. However, there are several parameters that decide which of the AHSS types to be used; the most important parameters are derived from the geometrical form of the component and the selection of forming and blanking methods. This paper describes the different types of AHSS, highlights their advantages for use in auto metal stampings, and discusses about the new challenges faced by stampers, particularly those serving the automotive industry.

Quadrilateral Shape Rib Forming by Roll Forming Process

2018 ◽  
Vol 878 ◽  
pp. 296-301
Author(s):  
Dong Won Jung
Keyword(s):  
Automotive Industry ◽  
High Strength Steel ◽  
Numerical Study ◽  
Thickness Distribution ◽  
High Strength ◽  
Metal Sheet ◽  
Product Performance ◽  
Roll Forming ◽  
Forming Process ◽  
Roll Forming Process

The roll forming is one of the simplest manufacturing processes for meeting the continued needs of various industries. The roll forming is increasingly used in the automotive industry to form High Strength Steel (HSS) and Advanced High Strength Steel (AHSS) for making structural components. In order to reduce the thinning of the sheet product, traditionally the roll forming has been suggested instead of the stamping process. The increased product performance, higher quality, and the lowest cost with other advantages have made roll forming processes suitable to form any shapes in the sheets. In this numerical study, a Finite Element Method is applied to estimate the stress, strain and the thickness distribution in the metal sheet with quadrilateral shape, ribs formed by the 11 steps roll forming processes using a validated model. The metal sheet of size 1,000 × 662 × 1.6 mm taken from SGHS steel was used to form the quadrilateral shape ribs on it by the roll forming process. The simulation results of the 11 step roll forming show that the stress distribution was almost uniform and the strain distribution was concentrated on the ribs. The maximum thinning strain was observed in the order of 15.5 % in the middle rib region possibly due to the least degree of freedom of the material.

Analysis on Stamping Forming Simulation and Springback Control of High-Strength Steel Auto-Body Panels

2014 ◽  
Vol 608-609 ◽  
pp. 71-76
Author(s):  
Bi Wang
Keyword(s):  
Automotive Industry ◽  
High Strength Steel ◽  
High Strength ◽  
Effective Control ◽  
Mold Design ◽  
Forming Process ◽  
Forming Simulation ◽  
Element Technique ◽  
Springback Control ◽  
Forming Defects

In recent years, the high-strength steel has been widely used in the automotive industry. As the high-strength steel sheet is prone to producing forming defects and serious springback problem in the stamping forming process, the finite element technique is used to simulate the value of stamping forming and springback process, so as to improve the stamping parameters and mold design according to the simulation results to achieve effective control of the springback value and efficiently improve the manufacturing precision of covering parts.

Numerical Simulation on Thermo-Forming Process of the Ultra High Strength Steel

2014 ◽  
Vol 1004-1005 ◽  
pp. 1265-1269
Author(s):  
Bi Yan ◽  
Ma Xu ◽  
Meng Chen ◽  
Yang Guang
Keyword(s):  
Numerical Simulation ◽  
Automotive Industry ◽  
High Strength Steel ◽  
High Strength ◽  
Thermal Coupling ◽  
Forming Process ◽  
Ultra High Strength Steel ◽  
Thermoforming Process ◽  
Thinning Rate ◽  
Typical Method

Thermoforming is a typical method of ultra high strength steel plate’s forming for the automotive industry, where the 22MnB5 sheet is widely used. This article discusses how to simulate the thermoforming process of the 22MnB5 by using the thermal coupling software which is called Pam-stamp 2011. After that, we got the distribution of temperature、thickness and thinning rate of thermoforming parts.

Processing and Mechanical Properties of Highly Formable Ferritic High Strength Steel Containing Titanium Nanocarbides for Automotive Applications

2018 ◽  
Vol 941 ◽  
pp. 382-385
Author(s):  
Alexander Lange ◽  
Sarah Abraham ◽  
Rainer Fechte-Heinen ◽  
Nicholas Winzer ◽  
Andreas Kern
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Titanium Carbide ◽  
High Strength Steel ◽  
High Strength ◽  
Rolled Steel ◽  
Automotive Applications ◽  
Fine Grained ◽  
Hot Rolled ◽  
Hot Rolled Steel

The recently developed CH-W® 800 hot-rolled steel is specifically developed for automotive chassis applications that require both high strength and outstanding formability. A completely ferritic microstructure allows hole expansion ratios of 90% and more, which indicates the remarkable formability of the material. The tensile strength of at least 800 MPa is mainly due to its very fine-grained microstructure as well as titanium carbide nanoprecipitates.

scholarly journals AHSS AUTO STAMPING CHALLENGES: RECTIFYING SPRINGBACK

2015 ◽  
Vol 77 (4) ◽  
Author(s):  
S. Mohtar ◽  
N. Baluch ◽  
C. S. Abdullah
Keyword(s):  
Energy Management ◽  
Automotive Industry ◽  
Fuel Economy ◽  
High Strength Steel ◽  
High Strength ◽  
Energy Requirements ◽  
Advanced High Strength Steel ◽  
Springback Compensation ◽  
And Control

To improve crash worthiness and fuel economy, the automotive industry is, increasingly, using Advanced High Strength Steel (AHSS). The main reason to utilize AHSS is their better performance in crash energy management, which allows one to down gauge with AHSS. In addition, these engineered AHSS address the automotive industry’s need for steels with higher strength and enhanced formability. The improved capabilities the AHSS bring to the automotive industry do not bring new forming problems but certainly accentuate problems already existing with the application of any higher strength steel. These concerns include higher loads on presses and tools, greater energy requirements, and increased need for springback compensation and control. Springback problem, consistently, is one of the leading roadblocks hindering auto stamping productivity. This paper describes the origins and types of springback, characterizes what causes it, and elaborates ways to rectify it through, stabilization, compensation, and verification.

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