TY - JOUR
T1 - Mechanical design and manufacture by powder technology of a new mandrel tool for the fabrication of assault rifle barrels
AU - Urriolagoitia-Calderón, G.
AU - Urriolagoitia-Sosa, G.
AU - Verduzco-Cedeño, V. F.
AU - Hernández-Gómez, L. H.
AU - Romero-Ángeles, B.
AU - Torres-Torres, C.
AU - Torres-San Miguel, C. R.
AU - Wong-Angel, W. D.
N1 - Funding Information:
The authors gratefully acknowledge the financial support from the Mexican government by the Instituto Politécnico Nacional , Consejo Nacional de Ciencia y Tecnología and the Instituto de Ciencia y Tecnología del Distrito Federal . The authors also thank Mr. Michael Hartman (Oxford Brookes University) for his technical guidance.
PY - 2012/7
Y1 - 2012/7
N2 - This paper presents a mechanical design procedure for the development of mandrel tools for barrels used in assault rifles by the application of powder technology. Besides, we also analyzed some considerations on its manufacturing process. In a first stage, the requirements that have to be fulfilled by the required tool were established. With these ideas, a conceptual design was obtained. Additionally, the Finite Element Method (FEM) was applied to analyze and determine the resultant stress field during the service manufacturing process. The experimental work complemented and validated the numerical analysis. For this purpose, 10 tools were manufactured. The first one failed after it had produced 505 gun barrels. The alignment of the hammer guides proved to be crucial. This situation was corrected and it was possible to obtain 2538 pieces with a second tool. In the third case, the sinterized material did not accomplish the demanded characteristics. Once, this situation was corrected, the other seven tools produced 1500 gun barrels in average. These factors improved the current manufacturing process that was followed with tools made for other materials and reduced the production costs.
AB - This paper presents a mechanical design procedure for the development of mandrel tools for barrels used in assault rifles by the application of powder technology. Besides, we also analyzed some considerations on its manufacturing process. In a first stage, the requirements that have to be fulfilled by the required tool were established. With these ideas, a conceptual design was obtained. Additionally, the Finite Element Method (FEM) was applied to analyze and determine the resultant stress field during the service manufacturing process. The experimental work complemented and validated the numerical analysis. For this purpose, 10 tools were manufactured. The first one failed after it had produced 505 gun barrels. The alignment of the hammer guides proved to be crucial. This situation was corrected and it was possible to obtain 2538 pieces with a second tool. In the third case, the sinterized material did not accomplish the demanded characteristics. Once, this situation was corrected, the other seven tools produced 1500 gun barrels in average. These factors improved the current manufacturing process that was followed with tools made for other materials and reduced the production costs.
KW - Cold forging
KW - Finite element method
KW - Mandrel tools
KW - Powder technology
UR - http://www.scopus.com/inward/record.url?scp=84860501053&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2012.02.031
DO - 10.1016/j.powtec.2012.02.031
M3 - Artículo
SN - 0032-5910
VL - 224
SP - 76
EP - 85
JO - Powder Technology
JF - Powder Technology
ER -