Characterization of microstructure and residual stress in a 3D H13 tool steel component produced by additive manufacturing

2014 ◽  
Vol 29 (17) ◽  
pp. 1978-1986 ◽  
Author(s):  
Ryan Cottam ◽  
James Wang ◽  
Vladimir Luzin
Keyword(s):  
Residual Stress ◽  
Additive Manufacturing ◽  
Tool Steel ◽  
Steel Component ◽  
H13 Tool Steel ◽  
Image Position

Abstract

scholarly journals Microstructure evolution during binder jet additive manufacturing of H13 tool steel

2020 ◽  
Vol 36 ◽  
pp. 101534
Author(s):  
Peeyush Nandwana ◽  
Rangasayee Kannan ◽  
Derek Siddel
Keyword(s):  
Additive Manufacturing ◽  
Tool Steel ◽  
Microstructure Evolution ◽  
H13 Tool Steel

Simulation of Residual Stress in Lens Deposited H13 Tool Steel on Copper Substrate

2011 ◽  
Author(s):  
Tushar K. Talukdar ◽  
Liang Wang ◽  
Sergio D. Felicelli
Keyword(s):  
Residual Stress ◽  
Tool Steel ◽  
Laser Power ◽  
Copper Substrate ◽  
Scanning Speed ◽  
Temperature History ◽  
H13 Tool Steel ◽  
Scanning Strategies ◽  
Stress Accumulation ◽  
Free Edges

Solidification cracking represents a significant scientific and technical challenge in the rapid fabrication of bimetallic parts involving Cu and H13 tool steel. The main cause of the cracking formation is attributed to the residual stress accumulation, which depends on the thermal history and phase transformation during the deposition. In this research, a thermomechanical three-dimensional finite element model is developed to determine the temperature history and residual stress in Cu-H13 samples deposited by the Laser Engineered Net Shaping (LENS) process. The development of the model was carried out using the SYSWELD software package. The metallurgical transformations are taken into account using the temperature dependent material properties and the continuous cooling transformation diagram. Two different scanning strategies — alternative and unidirectional — are studied. The same model is also applied to a H13-H13 sample to compare the results. The input laser power is optimized for each layer and three different scanning speeds to maintain a steady molten pool size. It is observed that for a constant scanning speed the required laser power decreases with addition of more layers, and with the increase of scanning speed the laser power needs to be increased. The residual stress is found to be compressive near the center of the deposited wall and tensile at the free edges, which is consistent with the published experimental results in the literature. Similar stress distributions are obtained for both scanning strategies with higher stress concentration at the free edges of the interface between the substrate and the first layer. In these regions, the use of H13 substrate results in a higher stress accumulation than the Cu substrate.

Fabrication of FSW Tool Pins Through Turning of H13 Tool Steel: A Comparative Analysis for Residual Stresses

2021 ◽  
pp. 1-16
Author(s):  
Ravi Butola ◽  
Ravi Pratap Singh ◽  
Naman Choudhary ◽  
K. K. S. Mer ◽  
Jitendra Bhaskar ◽  
...  
Keyword(s):  
Residual Stress ◽  
Shear Stress ◽  
Tool Steel ◽  
Compressive Residual Stress ◽  
Stress Measurement ◽  
Positive Impact ◽  
Cnc Machine Tools ◽  
Friction Stir ◽  
H13 Tool Steel ◽  
Residual Shear Stress

In the present research, measurement of residual stress induced during turning and threading operations for the fabrication of two types of pin profiled friction stir processing/welding (FSP/FSW) tools, i.e. cylindrical profiled pin tool and cylindrical threaded profiled pin tool, is being dealt with. Workpiece was chosen to be H13 tool steel with a diameter of 22[Formula: see text]mm and 110[Formula: see text]mm length. Turning and threading was done on CNC machine tools using CNMG 12404-THM uncoated tungsten carbide cutting tool. For residual stress measurement of the workpieces, an XRD-based Pulsetec[Formula: see text]-X360n portable residual stress analyzer setup was used. The experimental results show that the cylindrical pin profile tool had a compressive residual stress of [Formula: see text][Formula: see text]MPa and compressive residual shear stress of [Formula: see text][Formula: see text]MPa, while the cylindrical threaded pin profile tool had a compressive residual stress of [Formula: see text][Formula: see text]MPa (51.8% more) and compressive residual shear stress of [Formula: see text][Formula: see text]MPa (40% less). It has been concluded that due to threading operation on the cylindrical threaded pin profile, the value of residual stress is more in it, and since the stress is compressive in nature, it would have a better positive impact while doing FSP/FSW than that of the cylindrical profiled pin tool.

Modelling of Tool Wear and Residual Stress during Machining of AISI H13 Tool Steel

2007 ◽  
Author(s):  
José C. Outeiro ◽  
Domenico Umbrello ◽  
José C. Pina ◽  
Stefania Rizzuti
Keyword(s):  
Residual Stress ◽  
Tool Wear ◽  
Tool Steel ◽  
H13 Tool Steel ◽  
Aisi H13 ◽  
Aisi H13 Tool Steel

Assessment of laser power and scan speed influence on microstructural features and consolidation of AISI H13 tool steel processed by additive manufacturing

2020 ◽  
Vol 34 ◽  
pp. 101250 ◽  
Author(s):  
Eduardo B. Fonseca ◽  
André H.G. Gabriel ◽  
Luana C. Araújo ◽  
Pedro L.L. Santos ◽  
Kaio N. Campo ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Tool Steel ◽  
Laser Power ◽  
H13 Tool Steel ◽  
Scan Speed ◽  
Aisi H13 ◽  
Aisi H13 Tool Steel
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