Q1) The redesigned brake caliper is manufactured using SLM from Titanium Ti6Al-4V alloy powder. How many SLM machines are required to manufacture parts for 450 vehicles which are to be built in a 20-month production period. The following parameters are in effect: • A single caliper is built at a time • The caliper has a height of 173mm. • Each layer is 32 µm thick • Only one laser is used • The average laser scanning time for each layer with a single laser is 63 seconds • The powder recoating time for every odd numbered layer is 12 seconds and 25 for every even numbered layer • Every 8th layer is scanned twice, at 2.3 times the usual laser scan speed to provide additional heat input for in-situ heat treatment • The SLM machine operates at a duty rate of 42% of the 24-hour day, Monday to Friday, for 48 weeks of the year, with 10% of production time lost to unscheduled downtime.
Q1) The redesigned brake caliper is manufactured using SLM from Titanium Ti6Al-4V alloy powder. How many SLM machines are required to manufacture parts for 450 vehicles
which are to be built in a 20-month production period. The following parameters are in effect:
• A single caliper is built at a time
• The caliper has a height of 173mm.
• Each layer is 32 µm thick
• Only one laser is used
• The average laser scanning time for each layer with a single laser is 63 seconds
• The powder recoating time for every odd numbered layer is 12 seconds and 25 for every even
numbered layer
• Every 8th layer is scanned twice, at 2.3 times the usual laser scan speed to provide additional heat
input for in-situ heat treatment
• The SLM machine operates at a duty rate of 42% of the 24-hour day, Monday to Friday, for 48 weeks
of the year, with 10% of production time lost to unscheduled downtime.
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