Holemaking

Automotive

Automotive Supplier Speeds Metal Removal With Boring Mill

In an industry where one in three shops has closed during the past 10 years, Fischer Tool and Die's business is thriving. According to the Temperance, Michigan shop, this is because its growth stems from die cast work for the automotive 'new domestics,' a term for transplants.

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Self-Reversing Tapping Head Speeds CNC Production Job

When Prestige Precision Products (PPP), a shop in Rochester, New York, began ramping up for a recent high-production job, it made a substantial investment in new equipment dedicated to the project. Among the acquisitions were a new HMC with a pallet changer, customized tombstone fixtures for the pallets and some innovative tooling items. The part, an aluminum component for the automotive industry, had one hole to be drilled and tapped.

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Holemaking

Re-Designing The Reamer

This reaming system uses a multiple-cutting-edge, solid carbide cutting disc that can be changed as easily as an end mill's insert.

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Holemaking

A Few Tricks With Turning Center Canned Cycles

Most turning centers are equipped with some helpful canned cycles. Fanuc, for example, has three simple, one-pass canned cycles (G90 for turning and boring; G92 for threading; and G94 for facing).

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Holemaking

Near-Dry Machining Tackles Large-Diameter Work

Tru-Cut Manufacturing's foray into near-dry cutting began approximately 5 years ago. At that time, the masonry drill bit producer based in Cary, Illinois implemented the Accu-Lube line of lubricants and equipment from ITW Rocol (Glenview, Illinois) to achieve safer, more profitable metalworking operations.

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Holemaking

Chip-Free Drilling Process Creates Holes And Bushings

This chip-free drilling technique can create both a hole and support bushing in thin-walled parts in one machining operation.

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Holemaking

Marine Supplier Meets Tricky Tolerances With Presetter And Measuring Machine

For its supercharged six-cylinder Verado outboard motor range, Mercury Marine (Fond du Lac, Wisconsin) set and met multiple new tolerances. One of the trickier tooling tolerances had to do with the valve seat boring tools. The company's Mazak machining centers incorporate 15 of these long, narrow, multi-insert tools to finish machine the 24-valve seats, intake and exhaust in the one-piece aluminum cylinder head. Because valve clearances are factory-adjusted and are designed to remain within tolerance for several thousand hours, close machining tolerances are essential.

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Turning Without Rotating The Part

For large or unbalanced parts, this machining center can perform turning or boring operations using its programmable U axis.

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Holemaking

A Double-Depth Hole Machining Custom Macro

 All machining center controls come with a set of helpful hole-machining canned cycles. Most control manufacturers use G codes from G81 through G89 to name them (G81 for drilling, G82 for counter-boring, G83 for peck drilling and so on).

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