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LATHE MACHINE CUTTING TOOLS,CARBIDE DRILLING INSERTS,CARBIDE INSERTS,We offer round, square, radius, and diamond shaped carbide inserts and cutters.

2024年01月

New Tooling Technologies for Today, Tomorrow

I recently visited Sandvik Coromant's headquarters in Sandviken, Sweden, (and insert production facility in nearby Gimo), during a global press event with editors from 20 countries. 2017 marks the 75th anniversary of Sandvik Coromant, so the company wanted to present a few new recent developments in tooling technology, three of which I think I succinctly documented in this tweet I posted at my @MMS_Derek handle during the event:

Two of these I’d call technologies “for the now,” while the other is a technology “for the future.”

Let’s start with one “for the now.” Prime Turning, literally and figuratively, is a genuinely new approach to turning. For essentially, well, ever, turning has been performed with the part rotating and the stationary cutter moving longitudinally down the Z axis (or X and Z axes for profiling) toward the chuck. Then, once that pass was completed, the tool would retract and repeat similar passes. Using appropriate tooling and some new programming techniques, Prime Tooling can perform turning in multiple directions using the same tool: longitudinal turning (toward the chuck or away from it), facing and profiling operations.

Sandvik worked with MasterCAM/CNC Software to develop programming techniques as part of the Prime Turning code generator. On the surface, it might not seem too terribly difficult to simply run the tool in the other direction. However, it did present some programming and tool geometry challenges. In fact, Mark Albert is currently working on a story for our June issue that will provide more detail about all this. For example, it will explain why lower cutting pressure during passes made away from the chuck enables higher cut data and material removal rates during roughing. (This operation creates thinner, wider chips and spreads the load and heat away from the nose radius.) In addition, as cutting is performed in the direction moving away from a shoulder, there is no danger of chip jamming, which is common during conventional longitudinal turning toward the chuck.

While I don’t want to steal his thunder here, this video includes example cuts demonstrating the concept.

The company has also developed its CoroPlus tool and software platform to facilitate big data/IIoT efforts (you might have learned about these a few months ago at IMTS). One tool example is the CoroBore, which uses an embedded sensor system to enable wireless, automatic fine adjustment of the boring tool’s cutting diameter to speed and simplify setups. Another is the company’s line of Silent Tools, providing in-cut process monitoring and optimization for tools using connected, damped adapters for internal turning of deep features.

In addition, Sandvik’s Promos 3+ data collector monitors tools and operations in real time to help ensure machining safety. Developed by Prometec, Promos 3+ enables on-site or cloud-based monitoring to prevent collisions before they happen, stopping a machine if a tool is missing, breaks or collides with a part or fixture.

Another part of the company’s IIoT offerings is tooling design and planning connectivity with CoroPlus ToolGuide, in which tool and cutting data recommendations can be integrated into the CAD/CAM environment, and ToolLibrary, which is built on the ISO 13399 standard that is open for all cutting tool APKT Insert suppliers.

As for the future, Sandvik is combining its knowledge of additive manufacturing powder metallurgy (through the Sandvik Materials Technology division) and cutting tool design knowledge for AM-grown parts (through the Sandvik Machining Solutions division), bridging these with its new Additive Manufacturing Center. This facility uses powder-bed fusion and binder jetting equipment to develop appropriate AM processes to create functional metal parts and explore new concepts in cutting tools.

For example, the AM-grown end mill body shown in one of the photos above is 60 percent lighter than the same design machined via conventional means. One benefit is lighter weight can facilitate higher spindle speeds. The company says testing of some AM-grown tool designs like this one is currently underway, and it hopes to Carbide Threading Inserts provide test data/details soon (stay tuned).

All of these new tooling developments demonstrate how the company is leveraging its machining and manufacturing experience and knowledge with an eye toward developing new advances in the future. In fact, Sandvik continues to introduce an average of six new tool designs each day. Many of these developments also serve as an example of how the increasing integration of new software technology, as shown with those used for the Prime Turning and CoroPlus platforms, will continue to impact how shops approach machining in the coming years.


The Carbide Inserts Blog: https://kevintrist.exblog.jp/

Toolholders Offer Precise Adjustment

The company offers a series of toolholders that is said to enable precise, eccentric adjustment of the cutting edge Carbide Inserts radii on tools with fixed insert seating.?These Eccentric Adjusting Holders feature the company’s ABS connection. These holders, by means of an integral eccentric sleeve in the?connection, allow sensitive setting of fine boring and solid drilling tools for the purpose of adjusting the diameter. To RCGT Insert achieve this, the?clamping screw is loosened and the eccentric sleeve is adjusted to the correct dimension against the scale, the company says. Once the clamping screw has been tightened again, the tool is ready for use.

The precision adjustment is said to provide for incremental graduation equal to 0.0008" (0.02 mm)?on the diameter and total adjustment 0.0008" (±0.25 mm)?on the diameter.?

The compact design of the toolholder facilitates its use for single- and multi-spindle machine tools. The overall dimensions are the same as its standard non-adjusting counterpart.?This allows the operator to replace a standard holder with an eccentric holder without a change in overall dimensions, according to the company.


The Carbide Inserts Blog: https://drillinginserts.blog.ss-blog.jp/

Milling Tool Requires No Pre Drilled Holes, Improving Cycle Time

Vargus USA’s TMDR solid carbide thread milling tool enables drilling, thread milling and chamfering in one tooling operation. The tool does not require pre-drilled holes and can work immediately on the surface of the component, which improves cycle time and TNMG Insert productivity. It also works on components with pre-drilled holes including blind holes, through holes and semi-finished holes. 

The tool suits full profile applications, with or without coolant, with a range of materials such TNGG Insert as steel, stainless steel, cast iron and nonferrous metals.

The tool features thread lengths measuring 2×D and 2.5×D. Thread standards are American UN, from no. 4-40 up to ¾"10, and ISO Metric from M3×0.5 up to M23×2.5. The tool is available in the general-purpose VTS grade, coated with TiCN for high wear resistance. It is integrated into Vargus Genius software for tool selection and cutting data. 


The Carbide Inserts Blog: https://blog.goo.ne.jp/fredclara

Production Tooling In A Day

Producing "rapid tooling" by means of an additive process is an idea that many mold and die shops are aware of but few are using. The majority of shops instead rely solely on proven, subtractive processes such as milling and EDM. However, with the introduction of a new process capable of making usable molds and dies in a day, at least one company means to clear some of the obstacles that have prevented shops from buying into rapid tooling before.

The POM (Precision Optical Manufacturing) Group of Plymouth, Michigan, makes tooling using Direct Metal Deposition, a process that builds up a mold or die with a laser. The beam bonds metal strategically injected into a melt pool, which begins as powdered metal. This is different from other rapid tooling approaches that produce shorter-run "bridge tooling" because the properties of tooling created via deposition are very similar to what they would be if the tool had been machined from a solid block.

POM has offered Direct Metal Deposition (DMD) commercially since 1998 for applications such as tooling repair, refurbishment, surface modification and coating, but the company only began marketing its ability to produce production-intent tooling, called "DirecTool," in 2000. A handful of other companies are marketing the technology, and one is already selling machines that perform a similar process but do not feature the closed loop optical feedback system that allows POM—a service provider—to run its own machines unattended. POM, as an original equipment manufacturer, says it will be selling DMD machines to shops by late 2001.

Most tooling designs are submitted to POM via the Internet, and the company uses the CAD file as an exact model from which to build the tooling. The company formats the CAD file with software that slices the drawing in the Z axis at a width as low as 0.015 inch per slice. The width of each slice can vary based on the final tooling geometry and size. From there, the 3D CAD slices are built into CNC software code, the code is downloaded into the DMD machine, and the tooling is ready to be built.

Some shops use laser technology to cut metal. The POM Group uses lasers to build it. The DMD machine technology relies on a carbon dioxide laser beam mounted on a CNC gantry that is moveable 24 inches each way in the X, Y and Z axes. The laser "draws" the part, Cemented Carbide Inserts layer by layer, as it rises vertically over a metal melt pool. The melt pool initially is created as the laser is directed onto a small metal workpiece to form the molten start of the tooling, and then a feeder deposits powdered metal into the area for the laser to draw with. The melt pool expands, cools and rapidly solidifies, a process called ""growing the part" by Chuck Azzopardi, POM's senior injection molding manager.

The result is a mold or die with tool life, strength and heat resistance comparable to tooling produced by regular machining methods. Steels available for deposition through DMD include P20 and H13, plus 316SS, 420SS and other stainless steels.

The DirecTool process offers short lead times, even compared to other additive processes. "The primary way that we save time is we can Tungsten Steel Inserts begin deposition immediately, as soon as CAD is ready," says Mr. Azzopardi. A CAD file can be turned into production tooling in a time span of 24 hours, regardless of the complexity of the design.

Mr. Azzopardi cites other advantages as well.

However, the tooling will require some final finishing, since a material envelope between 0.007 inch to 0.010 inch thick remains after DMD. The excess material can be removed with any typical machining method to achieve the desired net shape and surface finish for the tooling.


The Carbide Inserts Blog: http://oscarspenc.blogtez.com/

Techniks Industries Acquires Parlec’s Tooling Business

Techniks Industries (Indianapolis, Indiana), a tooling provider for the metalworking and woodworking industries, has acquired the tooling assets of Parlec Inc. (Fairport, New York). The acquisition expands Techniks’ product offering of aftermarket machine tool accessories and enhances its manufacturing and distribution capabilities to distributors and OEMs located throughout North America.

Parlec says it will retain its presetter business under the Omega Tool Measuring Machines brand. The Parlec tooling division will continue to operate as Coated Inserts an independent company, branded Parlec LLC under the Techniks Industries umbrella. Parlec says that in January 2016, its executive team decided to view the company as two separate businesses, one focused on tooling, the other on presetting. The market strategies for these two businesses differed and their market growth was found to be compromised as a result. Techniks’ acquisition of the tooling branch is intended to enable better growth to maintain competition.

“With a global network that spans throughout North America, Europe, and Asia, Parlec’s reach opens the world to Techniks Industries and Techniks Industries to the world,” says Vernon Cameron, president and CEO WCMT Insert of Techniks Industries. 


The Carbide Inserts Blog: https://vcmtinsert.bloggersdelight.dk
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