Refine Your Search

Topic

Author

Affiliation

Search Results

Training / Education

Introduction to Advanced High Strength Steel Applications and Manufacturing

2019-10-08
Advanced High Strength Steels (AHSS) are now commonly used in automotive body structural applications. The high strength of this grade classification is attractive to help reduce mass in the automotive body through reduction in thickness. Strength also supports improvements in safety requirements so that mass increases are minimized. In some specific grades of AHSS, energy absorption is possible in addition to the high strength. This course will review the definition and properties of AHSS and cover several common applications in automotive body structures.
Technical Paper

A portable numerical control drilling template

2019-09-16
2019-01-1876
The automation market for aircraft assembly features several options, from deployable crawlers through mobile industrial manipulators to large scale riveters, not to mention fiber layup machines. When drilling, such equipment will typically handle at least a few hundred holes in a given area and setup, with the part most often being a nearly flat panel free of obstructions or with obstructions with a constant cross-section such as stringers. Automation is now widely employed in the manufacturing of wing and fuselage panels and major segment joints, to name a few uses. The assembly of inner structures, however, and especially those in the range of a hundred holes or less, located in areas of limited access crowded with other product structures or even positioning fixtures sitting outside and preventing machine access, is still largely manual and dependent on drilling templates or jigs (DJs).
Technical Paper

A New Positioning Device Designed for Aircraft Automated Alignment System

2019-09-16
2019-01-1883
Accurate and fast positioning of large aircraft component is of great importance for Automated Alignment System. The Ball joint is a widely-used mechanical device connecting the aircraft component and Automated Alignment System. However, there are some shortcomings for the device in man-machine engineering, such as the entry state of the ball-head still needs to be confirmed by the workers and then switched to the locking state manually. To solve above problems, a new positioning mechanism is present in this paper, which consists of a ball-head and a ball-socket. The new device is equipped with a monocular vision system, in which a calibrated industrial camera is used to collect the images of the ball-head. And then, the 3-D coordinate of the ball-head center is calculated by a designed algorithm, which combines the symmetry of the sphere and the principle of projection transformation, guiding the positioner to capture the ball-head.
Standard

Heat Treatment of Carbon and Low-Alloy Steel Parts, Minimum Tensile Strength Below 220 ksi (1517 MPa)

2019-06-17
CURRENT
AMS2759/1G
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements for heat treatment of carbon and low-alloy steel parts to minimum ultimate tensile strengths below 220 ksi (1517 MPa). Parts are defined in AMS2759. Due to limited hardenability in these materials, there are size limits in this specification.
Article

Stronger, quieter cabs

2019-06-12
Worthington expert sees AHSS and active noise cancellation making off-highway cabs safer and less-stressful places to work.
Standard

Test Strip, Holder, and Gage for Shot Peening

2019-06-06
CURRENT
J442_201906
This SAE standard defines requirements for equipment and supplies to be used in measuring shot peening arc height and other surface enhancement processes. Guidelines for use of these items can be found in SAE J443 and SAE J2597.
Technical Paper

The History of Laminated Steel

2019-06-05
2019-01-1578
This paper discusses the background and history of “laminated steel” (commonly called “noiseless steel” or MPM). It provides the early development, where it came from, and how it was introduced to North America as a new tool for engineering acoustical solutions. A progressive timeline shows laminated steel from its earliest inception in Europe to its current role in today’s global market. Case histories along with examples of successful applications detail its important contribution in advancing the technology for component damping. Many manufacturing sources as well as end users have been impacted over the decades since it was first introduced. Some of those companies will be noted. The background information for this paper is provided by many of the individuals who were involved in the very early stages of its introduction as well those who are currently working to utilize the technology of laminated steel.
X