Advantages of Thread Whirling-
Thread whirling offers several advantages over single point threading:
• Deep Threads - Bone Screws usually have a deep thread formation like Acme forms and other increased pitch threads which can be machined in less time by whirling.
• Long Length to Diameter Threads - When used on a Swiss Type machine the Thread Whirling Spindle works close to the Guide Bushing for increased support and rigidity on long length to diameter screws. The process is usually performed in a single pass from stock diameter which maintains constant material support.
• Faster Setup - By eliminating the need to match rough and finish insert forms the thread whirling process reduces setup and debugging time. It eliminates special support devices and expensive startup development costs.
• Increased Productivity - A result of cycle reduction and increased up time is greater productivity. Thread Whirling is usually performed in a single pass from stock diameter. This eliminates multiple passes required for single point threading. By eliminating unnecessary support devise and multiple thread passes a single cycle can be reduced by minutes.