Page 35 - Metalforming Magazine April 2022

Improper dilution ratio caused by imprecise proportional mixing can lead to insufficient lubricant use, or excess application. This is further influ- enced by poor agitation methods.
the stamping process. Here, propor- tional mixing machines provide a pro- ductive and consistent means of cre- ating a uniform formula. Even the process used to stir the mixture is important, as excessive agitation can degrade the lubricant.
With the proper lubricant selected and the ratio of lube and water opti- mized, consistently test the mixture throughout a shift, a day, a week, a batch or even from operator to opera- tor, to ensure that improvements are
being realized. Testing the
lubricant and its applica-
tion should take place not
only from the mixing device
or holding tank, but also
from the spray nozzle to
confirm proper delivery to
the workpiece material.
Different testing methods include use of refractometers, moisture-balance analyzers and hydrometers.
Also, consider using evaporators to eliminate waste lubricants—another
Lubrication on shop floors clearly indicates excessive application or flawed use of directional spraying equip- ment. In addition, pressroom equipment wet with lubri- cant also is a sign of waste.
area of GHG emissions. In addition, a reclamation system allows metal for- mers to reuse at least a portion of the lubricant and helps to improve effi- ciency and minimize waste haul. This
Protecting dies. Increasing uptime.
Sensors for
Modern Metalforming
■ Prevent die crashes by detecting faults before the die closes
■ Eliminate productivity loss due to maintenance/repairs and bad-part sorting
■ Verify work pieces, holding tools, stripper plates, pilot holes,
and more
■ Plan for the future with the help of an industry-leading IIoT expert
www.metalformingmagazine.com
MetalForming/April 2022 33