Related Experiment Video
Updated: Jan 29, 2026
07:51
Measurements of Soil Carbon by Neutron-Gamma Analysis in Static and Scanning Modes
Published on: August 24, 2017
7.7K
Temperature Field Numerical Analysis Mode and Verification of Quenching Heat Treatment Using Carbon Steel in Rotating
Tsung-Pin Hung1,2,3, Chao-Ming Hsu4, Hsiu-An Tsai5,6
1Department of Mechanical Engineering, Cheng Shiu University, Kaohsiung 83347, Taiwan. tphung@gcloud.csu.edu.tw.
Materials (Basel, Switzerland)
|February 14, 2019
Summary
Rotational laser hardening of AISI 1045 steel was studied. Increasing rotational radius enhances hardening area and processing efficiency, while higher laser power deepens the hardened zone.
Area of Science:
- Materials Science
- Manufacturing Engineering
- Laser Material Processing
Background:
- Laser hardening is a surface treatment method for metals.
- Optimizing laser hardening parameters is crucial for achieving desired material properties.
- AISI 1045 steel is a common medium carbon steel used in various applications.
Purpose of the Study:
- To experimentally characterize temperature history and hardening depth in rotational laser hardening of AISI 1045 steel.
- To develop a predictive three-dimensional finite element model for temperature distribution and hardening zone.
- To investigate the influence of process parameters on hardening characteristics and efficiency.
Main Methods:
- Experimental characterization of temperature and hardness depth.
- Development and application of a 3D finite element model for thermal analysis.
- Systematic variation of rotational radius, laser scanning speed, and laser power.
Main Results:
- The hardening area prediction increases with rotational radius, improving processing efficiency.
- Hardness values and metallographic composition showed good agreement with experimental data.
- Hardening area uniformity decreases as laser scanning speed increases.
- Increased laser power input leads to greater hardening depth.
Conclusions:
- Rotational laser hardening parameters significantly influence the hardening zone characteristics.
- Finite element modeling provides a reliable method for predicting temperature fields and hardening areas.
- Optimizing rotational radius and laser power is key to enhancing efficiency and depth in laser hardening.
More Related Videos
14:18Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
11.9K
10:03Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel
Published on: October 5, 2018
8.6K
Related Concept Videos
03:00Self-Evaluation: Self-Enhancement and Self-Verification
5.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.8K
01:17Strategies of Self-Presentation II: Self-Verification
189
Self-verification is a fundamental psychological drive wherein individuals seek affirmation of their self-concept from others, striving for consistency between their internal self-view and external perceptions. This drive operates even when the self-concept is negative, influencing interpersonal behavior and feedback preferences in complex and often counterintuitive ways. Unlike the self-enhancement motive, which seeks positive evaluations, self-verification prioritizes coherence and...
189
01:24Numerical Calculations
1.2K
In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
1.2K
01:17Steel Fastening Techniques
1.3K
Steel sections can be joined together through various fastening techniques including riveting, bolting, and welding, each suitable for different structural requirements and conditions.
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
Rivets are cylindrical steel fasteners with a specially designed head. During application, rivets are heated until white-hot and then inserted through pre-drilled holes in the steel sections. A pneumatic hammer is used to shape the exposed end into a second head, securing the sections together.
Bolting is another...
1.3K
01:25Relative Motion Analysis using Rotating Axes
917
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
917
01:22Relative Motion Analysis using Rotating Axes - Acceleration
808
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
Time differentiation is...
808