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Hard rock cutting technologies for mining CSIRO Research

Our rock cutting research focuses on the mechanics of the hard rock failure under the action of an undercutting disc, with and without dynamic activation. We take into

(PDF) HARD ROCK CUTTING WITH SMARTCUT TECHNOLOGY

A fundamental limitation on the use of machines for hard rock excavation is cutting tool wear. The development of cutting tools with extended tool life will have a major impact

hard-rock cutting Archives International Mining

2021-5-17  In mining one of the most interesting markets is hard rock cutting, where the potential for Element Six materials is enormous in rock tools. In relevant ASTM tests such as B611-13, PCD performs up to 500 or 650 times better than tungsten carbide.

Hard rock cutting with high pressure jets in various

2018-8-1  The cutting performance of high pressure jetting in hard rock was investigated in detail. Six rock specimen extracted from core samples from sections with low ROP values from mostly geothermal wells were embedded in mortar and tested under atmospheric

Hard rock cutting and the development of a continuous

2009-8-27  Hard rock cutting and the development of a continuous mining machine the extreme abrasivity of the UG2 reef, on a par with high quality quartzite. The cutting tests were conducted with a variety of carbide cutting tools and at various speeds and depths of cut.

Hard Rock Concrete Cutters Tackling the toughest jobs

With more than 30 years of experience, Hard Rock Concrete Cutters has steadily grown into one of the most trusted names in Midwest construction. Whether we’re coring in tight spaces or salvaging historic architectural façades, you can count on us to do the job exactly the way you want it done safely, professionally, on time, and on budget.

A Study of Optimal Rock-Cutting Conditions for Hard Rock

2011-9-20  The results of simulations and real LCM tests show that the effective rock-cutting condition corresponding to the minimum specific energy can be estimated by an optimized s/p ratio, which, in turn, is linearly proportional to the square of the material brittleness, B 2, and cutter tip width, t (i.e., s/p = cB 2 t, where c is coefficient).

Hard Rock Sawing & Drilling Specialists Co

Hard Rock Sawing & Drilling Specialist Co. is the premiere Minority Owned Concrete Saw Cutting, Core Drilling, Wall Sawing, Wire Sawing company serving the Midwest. Hard Rock’s professionally trained operators are second to none! We provide the professional and safe services you

EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A

2018-3-7  EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A REALITY Johnny Lyly, Global Product Manager Mechanical Rock Excavation, Epiroc Sverker Hartwig, Senior advisors Atlas Copco Gunnar Nord, Senior advisors Atlas Copco Conclusion Drill and blast has deve loped to become a very fast, sa fe and versatile method for mining and tunneling.

SUPER-HARD, THICK, SHAPED PDC CUTTERS FOR HARD

2010-2-4  range expected when drilling hard rock at representative drilling rates. Laboratory tests on a Vertical Turret Lathe (VTL) measuring the force components while aggressively cutting granite at depths up to 0.150” formed the basis for this decision. An angle of 17° from vertical best satisfied the criteria for strength and cutting effectiveness.

Hard rock cutting technologies for mining CSIRO Research

Mechanical Hard Rock Mining. Mechanisation of mining operations has been of interest for decades to improve productivity and reduce cost. However, in hard rock mining applications, this has been impeded by the limitations of the existing mechanical rock fragmentation capabilities, being constrained power, limited strength of mechanical components and short cutter life.

hard rock concrete cutting, hard rock concrete cutting

Alibaba offers 1,374 hard rock concrete cutting products. A wide variety of hard rock concrete cutting options are available to you, such as local service location, unique selling point, and applicable industries.

Effects of Focus Geometry on the Hard Rock-Cutting

The purposes of this study were to evaluate the effects of the focus geometry on the hard rock-cutting depth with the optimum abrasive flow rate (AFR), as well as the characteristics of the momentum transfer parameter (MTP). Rock-cutting experiments were conducted considering the water flow rate with different focus diameters and lengths.

Hard rock cutting and the development of a continuous

2009-8-27  Hard rock cutting and the development of a continuous mining machine Most importantly, because the total system is simple and flexible, the machine was designed to work in a wide variety of mining layouts. It was considered that the ideal operating methodology for the reef miner would be as follows. Raises would be cut approximately 100 metres

New directions for hard-rock cutting Mining Magazine

2019-3-26  New directions for hard-rock cutting Mining equipment manufacturers and research facilities are working to improve and innovate hard-rock cutting machines, finds Jax Jacobsen An operator using radio remote control for an Epiroc Mobile Miner 22H in an underground mine

Emerging Technologies Hard rock cutting technologies for

Joy Global’s prototype Dynacut is also now under trial at Cadia mine in NSW. With developments using conventional cutting methods continuing to under-perform in hard rocks, the trend for other OEMs to consider undercutting disc technology was confirmed at a recent international symposium on hard rock excavation for mechanical mining in Austria.

22H in an underground mine New directions for hard

2019-3-21  cutting tips to be replaced with a thermally stable diamond compo-site, attaching the cutting tip to the cutting tool and using drum design software to optimise the arrange-ment of the cutting tools on a drum. This technology works to reduce the operating costs in mechanical excavation of hard rock, while improving productivity. It also spe-

EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A

2018-3-7  EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A REALITY Johnny Lyly, Global Product Manager Mechanical Rock Excavation, Epiroc Sverker Hartwig, Senior advisors Atlas Copco Gunnar Nord, Senior advisors Atlas Copco Conclusion Drill and blast has deve loped to become a very fast, sa fe and versatile method for mining and tunneling.

SUPER-HARD, THICK, SHAPED PDC CUTTERS FOR HARD

2010-2-4  range expected when drilling hard rock at representative drilling rates. Laboratory tests on a Vertical Turret Lathe (VTL) measuring the force components while aggressively cutting granite at depths up to 0.150” formed the basis for this decision. An angle of 17° from vertical best satisfied the criteria for strength and cutting effectiveness.

A Closer Look at the Design of Cutterheads for Hard Rock

2017-12-1  A major advantage of cutterhead modeling is its simulation of mixed ground conditions, in which dissimilar materials (soft and hard rock or rock and fault gouge, etc.) are present at the face. Programming the individual cutters allows the cutting forces in each rock type to be estimated, and thus provides the designer with actual forces in each

Effects of Focus Geometry on the Hard Rock-Cutting

The purposes of this study were to evaluate the effects of the focus geometry on the hard rock-cutting depth with the optimum abrasive flow rate (AFR), as well as the characteristics of the momentum transfer parameter (MTP). Rock-cutting experiments were conducted considering the water flow rate with different focus diameters and lengths.

Development of Hard Rock Cutting Tool with Advanced

The modern mechanical excavation machines have enough power for cutting hard rock. The bottle neck which limits the use of machines for hard rock excavation is cutting tool. To cut hard and abrasive rock, CSIRO has been developing Super Material Abrasive Resistant Tools (SMART*CUT). SMART*CUT technology replaces the tungsten carbide (WC) tip of conventional pick with thermally stable diamond

New directions for hard-rock cutting Mining Magazine

2019-3-26  New directions for hard-rock cutting Mining equipment manufacturers and research facilities are working to improve and innovate hard-rock cutting machines, finds Jax Jacobsen An operator using radio remote control for an Epiroc Mobile Miner 22H in an underground mine

EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A

2018-3-7  EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A REALITY Johnny Lyly, Global Product Manager Mechanical Rock Excavation, Epiroc Sverker Hartwig, Senior advisors Atlas Copco Gunnar Nord, Senior advisors Atlas Copco Conclusion Drill and blast has deve loped to become a very fast, sa fe and versatile method for mining and tunneling.

About Us Hard Rock Concrete Cutters

Hard Rock was recently named a safety award winner by the Association of Subcontractors and Affiliates of Chicago, so you know we have our safety priorities straight. All of our concrete cutting professionals: Are trained in the safety guidelines of the United States Department of Labor’s Occupational Safety & Health Administration (OSHA)

SUPER-HARD, THICK, SHAPED PDC CUTTERS FOR HARD

2010-2-4  range expected when drilling hard rock at representative drilling rates. Laboratory tests on a Vertical Turret Lathe (VTL) measuring the force components while aggressively cutting granite at depths up to 0.150” formed the basis for this decision. An angle of 17° from vertical best satisfied the criteria for strength and cutting effectiveness.

Making hard-rock history P&H Mining

2016-8-4  on hard-rock cutting being up there. But you’d be mistaken in thinking this is a ‘new’ development. In fact, it’s anything but. Mining companies and OEMs alike have been working on the concept since the 1980s. “The idea of hard-rock cutting goes

A Closer Look at the Design of Cutterheads for Hard Rock

2017-12-1  A major advantage of cutterhead modeling is its simulation of mixed ground conditions, in which dissimilar materials (soft and hard rock or rock and fault gouge, etc.) are present at the face. Programming the individual cutters allows the cutting forces in each rock type to be estimated, and thus provides the designer with actual forces in each

AQ-5 Transverse Cutter Hard Rock Cutting Antraquip

AQ-5 DESCRIPTION. Entering the category of large excavators, the AQ-5 hydraulic drum cutter is an excellent option for carriers in the 50-80 ton weight class. The combination of power, and robust design of the transmission and cutting drums, the AQ-5 is capable of cutting many types of hard rock

Razor 94.7 104.7 The Cutting Edge of Rock

Razor 94.7 104.7, The Cutting Edge of Rock, is an employee-owned radio station serving northeastern Wisconsin. The Razor has been asking its audience to "Shut Up and Rock" with the likes of Metallica, Foo Fighters, Avenged Sevenfold, Shinedown, Slipknot, Five Finger Death Punch, Halestorm, Korn, and A Day to Remember since February 2000. In addition to strong, local personalities all day