what should flashpoint be for cutting oils in swiss machined

The flash point for cutting oils used in Swiss machining can vary depending on the specific application, tooling, and workpiece material. However, here are some general guidelines for the flash point of cutting oils used in Swiss machining:

* For general-purpose Swiss machining, a cutting oil with a flash point between 200°F (93°C) and 250°F (121°C) is commonly used.
* For high-speed Swiss machining or when working with difficult-to-machine materials, a cutting oil with a flash point between 250°F (121°C) and 300°F (149°C) may be preferred.
* For extreme applications, such as high-speed machining of titanium or other high-temperature alloys, a cutting oil with a flash point above 300°F (149°C) may be required.

It’s also important to consider the following factors when selecting a cutting oil for Swiss machining:

* Viscosity: A lower viscosity oil (e.g., 2-5 cSt) is typically used for high-speed Swiss machining, while a higher viscosity oil (e.g., 10-20 cSt) may be used for slower speeds or more complex operations.
* Lubricity: A cutting oil with high lubricity is essential for reducing tool wear and improving surface finish.
* Cooling properties: A cutting oil with good cooling properties can help to reduce heat buildup and improve tool life.

Some examples of cutting oils that may be suitable for Swiss machining include:

* Mobil Met 423 (flash point: 230°F/110°C)
* Klüber Syntheso XHT 32 (flash point: 260°F/127°C)
* Blaser Swisslube Synergy 735 (flash point: 280°F/138°C)
* Hangsterfer’s S-500 (flash point: 300°F/149°C)

It’s always best to consult with the manufacturer of your Swiss machine and the supplier of your cutting oil to determine the most suitable product for your specific application.