Manufacturing and characterization of similar to foam steel components processed through selective laser melting

The growing interest from the industry for lightweight metal components has driven the development of processes that would allow creating lightweight high melting point metals as steels, able to guarantee mechanical characteristics superior to existing foam (typically aluminium), without penalizing...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2017-09, Vol.92 (5-8), p.2121-2130
Main Authors: Caiazzo, Fabrizia, Campanelli, Sabina Luisa, Cardaropoli, Francesco, Contuzzi, Nicola, Sergi, Vincenzo, Ludovico, Antonio Domenico
Format: Article
Language:English
Subjects:
Aluminum
CAE) and Design
Compressive strength
Computer-Aided Engineering (CAD
Engineering
Industrial and Production Engineering
Laser beam melting
Lasers
Lightweight
Manufacturability
Mechanical Engineering
Mechanical properties
Media Management
Melting points
Original Article
Porosity
Precipitation hardening steels
Production methods
Rapid prototyping
Steel
Steel structures
Structural steels
Weight reduction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The growing interest from the industry for lightweight metal components has driven the development of processes that would allow creating lightweight high melting point metals as steels, able to guarantee mechanical characteristics superior to existing foam (typically aluminium), without penalizing one of the characteristics that cell structures have: lightness. Conventional manufacturing methods, such as casting, however, face difficulty in making complex periodic steel structures with designed shape and size and volume fraction. This study evaluates the manufacturability and performance of lightweight 17–4 PH steel components with spherical porosity fabricated via selective laser melting (SLM). Samples were designed and fabricated with the purpose to produce a structure similar to foam. Built samples were characterized in terms of dimensional accuracy, mechanical strength under compression and energy absorbed per unit mass. The designed structures have a designed relative density or volume fraction ranging between 31.1 and 32.8%.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-017-0311-4