Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Comparative Study on the Machinability and Manufacturing Cost in Low-Lead Brass

Schultheiss, Fredrik LU ; Sjöstrand, Stefan ; Rasmusson, Magnus ; Windmark, Christina LU and Ståhl, Jan-Eric LU (2016) 26th International Conference on Flexible Automation and Intelligent Manufacturing p.496-503
Abstract
Today, commercially used brasses commonly contain 2 to 4 wt.% lead. As the availability of low-lead and lead-freebrass increase, there are environmental incentives for investigating the consequences of replacing thelead-containing brasses with lead-free equivalents. Generally, lead-free brass is expected to have a lowermachinability than its lead-alloyed counterpart, implying a higher manufacturing cost. Thus, the aim of this studyhas been to quantify the added manufacturing cost by replacing a standard brass alloy with a low-lead alternative.This was done through a case study performed at a Swedish SME which replaced CuZn39Pb3 (3.3 wt.% Pb) withlow-lead CuZn21Si3P (<0.09 wt.% lead) for a select part. Since CuZn21Si3P is almost twice as... (More)
Today, commercially used brasses commonly contain 2 to 4 wt.% lead. As the availability of low-lead and lead-freebrass increase, there are environmental incentives for investigating the consequences of replacing thelead-containing brasses with lead-free equivalents. Generally, lead-free brass is expected to have a lowermachinability than its lead-alloyed counterpart, implying a higher manufacturing cost. Thus, the aim of this studyhas been to quantify the added manufacturing cost by replacing a standard brass alloy with a low-lead alternative.This was done through a case study performed at a Swedish SME which replaced CuZn39Pb3 (3.3 wt.% Pb) withlow-lead CuZn21Si3P (<0.09 wt.% lead) for a select part. Since CuZn21Si3P is almost twice as expensive asCuZn39Pb3, the material cost was found to have a substantial influence on the manufacturing cost. Additionally,the lower machinability implied a longer cycle time and higher losses while machining CuZn21Si3P, resulting in a77% overall increase in manufacturing cost when using the low-lead material. Arguably, the difference in materialcost, and thus manufacturing cost, may decrease over time making production of low-lead and lead-free brassproducts a viable option, especially when considering the environmental incentive for decreasing the amount oflead in circulation. (Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the 26th International Conference on Flexible Automation and Intelligent Manufacturing
pages
496 - 503
conference name
26th International Conference on Flexible Automation and Intelligent Manufacturing
conference location
Seoul, Korea, Republic of
conference dates
2016-06-27 - 2016-07-30
project
Lead-free brass
Lead-Free Copper Alloys in Products and Components
language
English
LU publication?
yes
id
86a29de6-8c87-4e56-9cef-f347c8d1c955
date added to LUP
2016-08-08 10:46:12
date last changed
2021-03-22 21:22:31
@inproceedings{86a29de6-8c87-4e56-9cef-f347c8d1c955,
  abstract     = {{Today, commercially used brasses commonly contain 2 to 4 wt.% lead. As the availability of low-lead and lead-freebrass increase, there are environmental incentives for investigating the consequences of replacing thelead-containing brasses with lead-free equivalents. Generally, lead-free brass is expected to have a lowermachinability than its lead-alloyed counterpart, implying a higher manufacturing cost. Thus, the aim of this studyhas been to quantify the added manufacturing cost by replacing a standard brass alloy with a low-lead alternative.This was done through a case study performed at a Swedish SME which replaced CuZn39Pb3 (3.3 wt.% Pb) withlow-lead CuZn21Si3P (&lt;0.09 wt.% lead) for a select part. Since CuZn21Si3P is almost twice as expensive asCuZn39Pb3, the material cost was found to have a substantial influence on the manufacturing cost. Additionally,the lower machinability implied a longer cycle time and higher losses while machining CuZn21Si3P, resulting in a77% overall increase in manufacturing cost when using the low-lead material. Arguably, the difference in materialcost, and thus manufacturing cost, may decrease over time making production of low-lead and lead-free brassproducts a viable option, especially when considering the environmental incentive for decreasing the amount oflead in circulation.}},
  author       = {{Schultheiss, Fredrik and Sjöstrand, Stefan and Rasmusson, Magnus and Windmark, Christina and Ståhl, Jan-Eric}},
  booktitle    = {{Proceedings of the 26th International Conference on Flexible Automation and Intelligent Manufacturing}},
  language     = {{eng}},
  pages        = {{496--503}},
  title        = {{Comparative Study on the Machinability and Manufacturing Cost in Low-Lead Brass}},
  url          = {{https://lup.lub.lu.se/search/files/13248549/C_3.1.pdf}},
  year         = {{2016}},
}