The famous Vulcan greeting from Star Trek takes on a whole new meaning when it comes to tool life. This was recently proven at Apex CNC Swiss, a machine shop specializing in high precision complex parts machined from hard materials and alloys.
According to Chuck Fluharty, co-owner of Apex,
“We were machining an electronics circuit board standoff in 303 stainless on a Star SR-20RIII machine. The part required a 0.180" (4.6 mm) deep hole threaded with a 0-80 thread. At the time, we were working with tooling from a well-known German maker that delivered 200 to 300 parts before tool failure. We did not feel that this was acceptable and, when we contacted the manufacturer’s technical support, they advised that that performance was ‘normal.’ We immediately began to look for an alternative.”
When Chuck and his team tried the Carmex mini mill-thread design, they saw production rise to more than 2,000 parts. More than that, they completed a further 500 parts in 17-4 stainless prior to failure.
Carmex performance at Apex CNC Swiss is another example of how tooling engineered for high performance and long life leads to greater prosperity for the customer. “Live Long and Prosper.”
Hoffman Estates, IL – BIG KAISER, a global leader in premium high-precision tooling systems and solutions for the metalworking industries, introduced Hydraulic Chucks for Swiss lathes in 2018, the first improvement to the technology in more than 30 years. This year, the program has expanded to include inch-size Standard Type chucks, as well as new F Type and R Type chucks.
Standard Type Hydraulic Chucks with tool-side clamping are now available in inch sizes with the clamping range of ø1/8”, 3/16” and 1/4”.
The new F Type’s single wrench enables easy cutting tool changes on the tool post. The easy-access rear clamping design is ideal for front tool post. Clamping from the opposite side of the cutting tool and optimum-length design improves overall ease of use. The F Type is available in a clamping range of ø3-10mm and coolant delivery is possible with an Rc(PT)1/8’’ screw.
The new R Type eliminates interference at both the upper or lower tool post positions with a unique block design and tightening at an offset position in the tool side. The R Type is available in a clamping range of ø3-10mm and its oil hole drills can be used for coolant delivery when mounted on the upper section.
To minimize machine downtime and provide operator safety, these Hydraulic Chucks use a simple hex wrench that requires only two to three turns for both clamping and unclamping. Tightening is complete when the clamping screw hits the bottom; controlling tightening torque is not needed.
Once a Hydraulic Chuck is centered, the runout will not vary, even if a cutting tool is changed repeatedly. Runout of fewer than three microns at four times diameter can be achieved. Hydraulic Chucks have a standard pipe thread for coolant-through connection and are available for most Citizen and Star machines with 3/4'’ or 22mm straight shank.
Our NEWS blog section is written by several different people. Sometimes, it from our team here at Next Generation Tooling & at other times it's by one of the manufacturer's we represent.
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