Since there seems to be very little in the way of information available regarding the process of "Thread Whirling", I am submitting the following to help enhance awareness of nebulous machining method. Also, I just like to see the Swiss forum active
Thread Whirling is a powerful process that when used under mass production conditions can be extremely profitable while simultaneously increasing your part quality. This process is ideal for long threaded parts that utilize a custom thread form. The primary application tends to be orthopedic bones screws however it is not limited to that and can be used to form any deep thread form in a very cost-effective manner.
Genevieve Swiss has compiled a database of FAQs as well as additional information as to why Thread Whirling is a process that all shops who perform Swiss-type work should consider.
Why Thread Whirling?
Thread Whirling FAQ
High Performance Thread Whirling Products
Also, when combined with Swiss-type Rotary Broaching, Thread Whirling becomes a viable method for quickly creating COMPLETE medical parts in one setup. Genevieve Swiss, with the engineering assistance of PCM S.A. pioneered the 'Non-adjustable' quick-setup Rotary Broaching process for Swiss Machines. Often copied, but never duplicated, the Swiss-Type 2160 Series Rotary Broach Holder continues to be a powerful way to enhance your profits from your Swiss-Type turning centers. This holder is available in shank sizes for most if not all Swiss Machine makes & models.
Additional Broaching information can be read here: Rotary Broaching 101
I hope this information helps some of the newer Swiss users become aware of what their machine is really capable of doing.
-SwissType