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Ashburn 7090 Provides Significant Cost Savings in Magnesium Machining Operation

November 2019

An automotive die casting and precision machine shop in Missouri was experiencing excessive coolant usage in machining operations on die cast magnesium. Ashburn Chemical was brought in to analyze the operation and recommend a solution.

THE CHALLENGE

The shop was dumping and re-charging the coolant every two weeks due to coolant discoloration and part staining. Ashburn Chemical was brought in to analyze the operation and recommend a solution.ASHBURN 7090 was recommended due to its multi-metal compatibility including magnesium, and long sump life.

  • Part Machined: Automotive Die Castings
  • Material: Magnesium and Aluminum
  • Material Grades: AZ91, AM50, AM60, A360, A383
  • Coolant Concentration: 10%

RECOMMENDED SOLUTION

ASHBURN 7090 was recommended due to its multi-metal compatibility including magnesium, and long sump life.

THE RESULTS

The low cost soluble oil was effectively the highest cost product due to high carry-off, low tool life, part staining and poor machine condition. Ashburn 7090 outperformed the incumbent product in tool life and part finish while leaving the machine in cleaner condition. 7090 was able to be run at a lower concentrate while achieving the required tapping results. This lower concentrate usage along with lowered initial cost has resulted in a significant cost savings.

 

 

RESULT DATA

 

Measurement Ashburn 7090
Competitor
Sump Life
   – Coolant Discoloration No color change Turned black
   – Coolant Dump/Recharge Six months 2 weeks
Coolant Usage
    – Annual Drum Usage 80 drums 300 drums

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