PDF Single point incremental forming (SPIF) is a truly die-less forming process which is quite suit-able for the batch type and prototype production Find, read and cite all the research you
2. Design of a powerful mid-IR femtosecond laser system Dec 07, 2015 · Proceeding from these investigations for the generation of a mid-IR seed we chose a femtosecond optical parametric amplifier based on a 2 mm long AgGaS 2 (AGS) crystal (LEA Ltd, Novosibirsk). The crystal was cut at = 42° for type I phase matching. The entire tuning range required was covered by adjusting the angle to 42.339.4°.
Dec 01, 2013 · A process map valid for the fibre laser deposition of Inconel 625 wire of Ø1.2 mm for laser power range of 1.01.8 kW, traverse speed ranging from 1.7 to 5.0 mm s 1 and wire feed rate 6.723.3 mm s 1 was developed.
Bin Feng Lumped parametric model of the human ear for 8). To characterize the model, the values of the six masses (M 1M 6) and the viscous eect of the cochlear uid (C 9 and C 10) were rst obtained from published anatomical data of human ear struc-ture. All the spring constants (K 1, K 2, K 3, K 5, K 6, and K 8) and the eight dashpot coecients (C 1C 8
Coatings Free Full-Text Investigation into Mar 21, 2021 · Wear tests were performed in air and 3.5 wt.% NaCl solution using the reciprocating friction mode on a CFT-1 ultra-functional wear-test machine with an applied load of 15 N, a sliding time of 120 min, a reciprocating length of 3 mm and a reciprocating rate of 1.8 m·min 1. Si 3 N 4 balls (5 mm in diameter) were applied as the counterparts
Jun 18, 2014 · Fusion welding of steel to aluminum is difficult due to formation of different types of Fe-Al intermetallics (IMs). In this work, 2 mm-thick steel was joined to 6 mm aluminum in overlap configuration using a 8 kW CW fiber laser. A defocused laser beam was used to control the energy input and allow melting of the aluminum alone and form the bond by wetting of the steel substrate.
Mid-IR Hybrid Fiber Pumped Lasers IPG PhotonicsFe 2+:ZnSe and Fe 2+:ZnS saturable absorbers (SA) are ideal materials for passive Q-switches of solid-state lasers operating in the spectral range of 2.5-4.0 µm. These lasers (e.g. 3.0 µm Er:YAG/YSGG/YLF are used for pumping middle-infrared Optical Parametric Oscillators and for numerous medical and dental applications.
Numerical modeling and experimental validation of Laser bending is an innovative technique to obtain the required bend-angle and sheet metal curvature by means of laser beam irradiation with controlled laser parameters. In this work, a numerical investigation on curvilinear laser bending of magnesium M1A aoy sheets has been carried out.
In the experiment, the overlapping rate is decided by the offset distance between adjacent tracks. According to Eq. (), the distance between adjacent tracks can be eed as follows:It is obvious that in addition to the overlapping rate, the value of is decided by the width of one single track. Therefore, the single-track experiment needs to be made at first, measure the width of the single
Selective laser melting of Al-Fe-V-Si heat-resistant Apr 26, 2015 · A three-dimensional finite model has been proposed to simulate the temperature field in selective laser melting Al-8.5Fe-1.3V-1.7Si (wt.%) heat-resistant aluminum alloy powder. The finite element analysis was carried out using the ANSYS code, taking into account temperature-dependent material properties, the effects of the powder-to-solid transition, and the movement of laser power
Study of carbide dissolution into the matrix during laser Feb 26, 2015 · Laser cladding is an advanced technology where a powder is deposited and melted on a substrate using a laser beam as a heat source. 1,2 1. E. Toyserkani, A. Khajepour, and S. Corbin, Laser Cladding ( CRC Press, Boca Raton, Florida, 2005). 2. J. Tuominen, Engineering coatings by laser claddingthe study of wear and corrosion properties, Ph.D. thesis, Tampere University of
Sep 01, 2016 · Laser forming is a non-contact method of 2D bending, 3D shaping and precision alignment of metallic and non-metallic components. In the laser forming process a temperature gradient across the thickness of heated zone generates different expansions across the thickness and thus a counter bending occurs in the plate.