9 Result(s)
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Article
Design and application of laser scanning strategy for machining deep surface grooves with a continuous-wave fiber laser
A laser scanning strategy for fabricating deep surface grooves using a continuous-wave fiber laser was investigated in this study. Because the low productivity of short-pulsed-wave lasers limits their applicat...
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Article
Manufacturing of a corrugated double-layered tube for the high-performance compact heat exchanger
Compact heat exchangers are expected to be one of the solutions for advanced heat exchanger having light weight, minimum volume, and high performance to improve the uses of energy sources and contribute to sus...
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Article
Control of Directed Energy Deposition Process to Obtain Equal-Height Rectangular Corner
In the directed energy deposition (DED) process, the scanning speed around sharp corners decreases from the command speed to a capable-curve speed. At a constant powder feed rate, the reduction in the scanning...
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Article
Design of an Ultrasonic Concentrator for Vibro-Tactile Sensors Using Electro-Mechanical Analogy
Vibro-tactile sensors have been utilized to measure the mechanical properties of soft materials based on the shift of resonant frequency. However, their low signal to noise ratio (SNR) has impeded them from cr...
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Application of segmented rubber rings to increase the sealing efficiency in hydroforming
The tube hydroforming process uses a pressurized fluid as the forming medium, and the sealing efficiency of the internal fluid has an important influence on the hydroformability. This study investigates the ap...
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Article
Feasibility studies on manufacturing tailored blanks by rolling partially stacked blanks
Tailored blanks with different blank thicknesses are semi-finished parts that can be used to produce lightweight vehicle parts. This study investigates a manufacturing process that can produce tailored blanks ...
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Article
Effect of loading pattern on longitudinal bowing in flexible roll forming
The flexible roll forming process can be used to fabricate products with a variable cross-section profile in the longitudinal direction. Transversal nonuniformity of the longitudinal strain is one of the funda...
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Article
Fabrication and characterization of roll-formed aluminum heat shield
High-performance Al heat-shield composite panel has been fabricated by roll forming and characterized in this study. While most conventional heat-shield products are made of steel, recent trend is to use Al-ba...
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Article
Fatigue life estimation of vertical probe needle for wafer probing
Wafer probing is a core inspection process to detect defects in a wafer prior to packaging. Since probe card requires over a million touchdowns on wafers, service life of the probe needle is a critical factor ...
