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Before (above) and after (below) photos of a starter housing component that Southland CNC accepted after seven other machine shops refused the job. This job requires applying seven boring heads, ranging from 0.314" to 4.287" (7.98mm to 108.89mm) in diameter.

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Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

The Kaiser 310 finish boring head is easily adjustable with an Allen wrench and holds true while changing and tightening the tool’s diameter path.

Harvey Tool is committed to designing unique geometries that optimize cutting performance for a variety of materials and applications. We introduce hundreds of new tools to the market every 6 months, offering our customers the solutions they need most.

Our fully stocked inventory is ready to ship the day of its purchase. We offer second day delivery at ground pricing, and any overnight orders ship until 7 p.m., EST.

Issues with supplied boring heads entailed frequent readjustments, a task too time-consuming for a single operator to perform.

We offer a comprehensive selection of more than 28,000 miniature and specialty cutting tools that are all fully stocked. The breadth and depth of our products help solve the industry’s toughest machining challenges.

Just because the phrase holds water for a tech company whose products evolve each year, there’s no reason it can’t also apply to a boring head designed to perform consistently after years of use.

Southland CNC has 30 Kaiser boring heads: 20 in production and 10 on standby. Some have been in use for 18 years with only the insert, normally PCD-tipped, requiring replacement.

Most of the parts the shop bores with the heads are for the aerospace industry, and are produced on vertical machining centers.

Much of the material Southland CNC machines is aviation-grade die cast aluminum. The shop also manufactures some sand cast parts. Depending on the workload, the 40-employee company runs two or three shifts at its 15,000-sq.-ft. facility, located about 75 miles northeast of Atlanta.

Once Southland CNC started applying the Kaiser heads, Parks knew he could trust the adjustment dial. If Southland CNC receives customer-supplied tooling that’s not up to par, it replaces them with its BIG Kaiser tools. “If you have a 15- or 20-minute cycle time and you throw every third part away because the diameter of the bores is incorrect, you’ve gained nothing at the end of the day,” Parks said.

We offer a comprehensive selection of more than 28,000 miniature and specialty cutting tools that are all fully stocked. The breadth and depth of our products help solve the industry’s toughest machining challenges.

Southland CNC keeps detailed data on its machining operations, which illustrate how well the boring heads works. “There are several times where the Kaiser boring heads have increased our output at least 25 to 40 percent,” Parks said.

One challenging job involves machining aluminum that has layers of steel laminated into it for aircraft engine magneto ignition systems. Because the steel helps generate the power for the spark plug, a boring head cuts both steel and aluminum. Interrupted cutting a hole 2" to 3" (50.8mm to 76.2mm) deep only adds to the challenge.

Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.

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END USER: Southland CNC Inc., (706) 778-0369, www.southlandcnc.com.CHALLENGE: Reduce scrap and tackle challenging jobs.SOLUTION: Adjustable finish boring heads.SOLUTION PROVIDER: BIG Kaiser Precision Tooling Inc., (888) 866-5776, www.bigkaiser.com.

Single- or multiple-point precision tool used to bring an existing hole within dimensional tolerance. The head attaches to a standard toolholder and a mechanism permits fine adjustments to be made to the head within a diameter range.

After setting up the tooling fixtures with seven boring heads, Southland CNC was able to finish the part better than the blueprint’s specifications, Parks said. “We did it right out of the gate without a second try.” Southland CNC still produces the part, and can make about 40 of them per day.

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Enlarging a hole that already has been drilled or cored. Generally, it is an operation of truing the previously drilled hole with a single-point, lathe-type tool. Boring is essentially internal turning, in that usually a single-point cutting tool forms the internal shape. Some tools are available with two cutting edges to balance cutting forces.

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At Southland CNC Inc., a Cornelia, Ga.-based job shop, two lines of boring heads have not only ensured parts are machined to tight tolerances, but have generated new business. The Kaiser 112 and 310 series of finish boring heads from BIG Kaiser Precision Tooling Inc., Hoffman Estates, Ill., have reduced scrap rates, exceeded the performance of customer-supplied tooling and earned the loyalty of operators, according to Darren Parks, Southland CNC’s process manager and CNC programmer.

The 112 series heads bore holes 0.016" to 2.126" (0.4mm to 54mm) in diameter, while the 310 hits holes 0.590" to 8.000" (15mm to 203.2mm). Both accommodate through-spindle coolant. Southland CNC bores cavities from 0.236 " (6mm), with a tolerance of 0.0002" (6µm), to 4.287" (108.89mm), with a tolerance of 0.001" (0.0254mm).

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Alan holds a bachelor’s degree in journalism from Southern Illinois University Carbondale. Including his 20 years at CTE, Alan has more than 30 years of trade journalism experience.

Harvey Tool is committed to designing unique geometries that optimize cutting performance for a variety of materials and applications. We introduce hundreds of new tools to the market every 6 months, offering our customers the solutions they need most.

Cone-shaped pins that support a workpiece by one or two ends during machining. The centers fit into holes drilled in the workpiece ends. Centers that turn with the workpiece are called “live” centers; those that do not are called “dead” centers.

Perhaps the most telling anecdote Parks recalled about BIG Kaiser tooling is when a new customer came to Southland CNC with an extraordinarily difficult part to machine. The customer had previously visited seven other machine shops and none of them felt they could process the starter housing component. “They told us if we couldn’t do it to print, they were going to scrap the project,” Parks said.

And because the boring heads and carbide bars are adjustable, Parks can train unskilled operators to use them instead of relying on a machinist being paid $30 to $40 per hour.

Richard Bevers, industrial sales representative at BIG Kaiser, is confident that when a customer adjusts a head only, say, 0.0005" (0.0127mm), he will know that’s what the bore will change. “When they lock the lock screw, it won’t affect the adjustment.”

A coil inside the housing and a magneto shaft, which has steel laminations and is magnetized, also assist in generating power, Parks added. As the magneto shaft passes in front of the steel in the magneto housing, the coil is charged and the spark plug ignites.

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When the BIG Kaiser boring heads are part of a properly designed setup, Parks knows he won’t need to scrap a part on the first run. “Once the part is positioned and the dial adjusted, the second, third and rest of the parts will hold true, and we just keep rolling,” he said. In other words, it just works.

Each time Steve Jobs took the stage at an Apple product release event, attendees could rely on him summarizing the performance of the company’s newest gadget with one confident phrase: “It just works.”

Parks explained that when he receives a blueprint and quotes a job, the hole diameter doesn’t influence the cost because he knows the boring heads work. “We look at other factors to see what could cause us problems, scrap or downtime.”

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