Milling a part with extremely hard material and complex geometry contributed to a high fluid and labor spend when using a competitor’s high-end vegetable-based coolant. It required high concentrations and maintenance (frequent coolant make-up, high additive usage), and its poor sump life lead to frequent cleanouts and recharges. Trialing a popular semi-synthetic coolant addressed the maintenance and sump life issues, but required even higher concentrations, and - more detrimental - tool life suffered. The Customer’s Desired Outcome was a coolant that could provide at least original tool life without sacrificing sump life (6-month minimum) and operator acceptability (clean, minimal odor, minimal maintenance) was needed.
Industry
Application
Quaker Houghton’s Solution was the Hocut 8640, an advanced soluble coolant designed for heavy duty machining, grinding and honing applications for a wide range of ferrous and aluminum alloys, especially harder stainless and high-nickel alloy steels.
The Outcome was that Hocut 8640 was able address the customer’s coolant requirements, and more:
The customer’s expectations have been exceeded. Hocut 8640 performs exceptionally in terms of lubricity and chip removal; along with lowered usage, waste, labor, and downtime, and with more consistent concentration control. The greatest benefit has been the elimination of additives; not only are they costly and labor?intensive, but also indicative of inconsistent coolant chemistry that can lead to additional parts inspection, as well as staining and rework.
Concentration and Special Controls. Required concentration is lower at 9-12% compared to previous vegetable-based (10-15%) and semi-synthetic (15-22%) coolants. Machine tool speed and feed rates required no adjustment.
Value-Added Information for Cost Justification. Reduction in coolant spend; elimination of additives spend. Reduction in labor related to coolant and additive adds. Reduction in waste, labor and downtime related to sump cleaning.
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