For the ultimate performance on Hardened Steel, look no further than YG-1’s flagship X5070 Blue milling cutters. Dedicated for ultra-high performance machining of Hardened Steel up to 70HRC, these cutters can cope with extreme heat up to 1,400°C. The nanograin carbide substrate combined with YG-1’s unique silicon-based coating means nothing cuts Hardened Steel faster or for longer than X5070 Blue. The range includes a wide range of sizes from just 0.1mm diameter and a host of geometries including long neck, corner radius, ball nose and 6-8 flute finishing tools.

Watch the speedy checkout – the seated cashiers are whizzes. You likely do not have time to run back to pick up an item you forgot.

Hardened Steel is extremely resistant to wear and abrasion. This is one of the main benefits when producing components that need to withstand regular abuse or heavy loads without failure or damage. It is also able to combat rust and corrosion better than standard steel.

Aldi says it keeps its prices low because of its no-frills stores, which stock more items that you might think but not a large variety of sizes and brands.

Soon, more Winn-Dixie and Harveys Supermarkets customers will, too, as the German discount grocer starts converting those Southeastern Grocers stores it bought in March into its namesake brand.

Despite some of the pros of using Hardened Steel, it should be taken into consideration that despite its hardness it is unable to cope with sharp impacts. Also, you should be careful when subjecting the material to high temperatures due to the quenching and tempering processes which can lead to a reduced melting point.

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“My main focus is because it is a food desert community, being able to have another store emerge means that it will continue to be an asset that is needed,” she said.

For tapping Hardened Steel we would always recommend our high-resistance range of machine taps. These Italian made ultra-high quality powder metal machine taps from UFS also contain high cobalt and vanadium content for the ultimate wear resistance. The short flute design and 15° helix angle provide exceptional strength when tapping hard steels.

First off, it is not possible to use HSS or standard Carbide tooling when milling Hardened Steel, especially above 50HRC. We would always recommend a superior grade of carbide such as Ultrafine or Nanograin. These substrates are much denser which results in a harder-wearing tool with extremely high heat resistance.

At Cutwel, we speak to many people about the difficulties of machining Hardened Steel and how we would advise best to machine this particular material. In this article I have summarised all the common questions I get asked and also provided a bit of background information to help you on your way.

There are no meat, seafood or bakery counters but the stores carry packaged fresh varieties. More than 90% of Aldi products are its house brands, which the company says are manufactured by the nation’s leading food producers

The main advantage of Stainless Steel over Hardened Steel is its corrosion resistance. Particularly because Hardened Steel is prone to cracking.

When using coolant on Hardened Steel applications thermal shocking can occur due to the major temperature differences involved, which can cause breakages. If you need an alternative method for swarf evacuation, we would advise air or mist coolant instead.

“I liken it to a Baby Costco,” said Kate Clifford, broker-owner of the Jacksonville Beach-based Strategic Sites Clifford Commercial real estate firm.

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Managing tool life is always important and when machining Hardened Steel you may experience high cutting temperatures which can reduce how long a tool will optimally perform. We recommend using small cut depths when machining Hardened Steel because of the increased time the tool is exited from the cutting process. It results in the cutting edge being cooled, thus increasing its tool life.

It is made by heating carbon steel to a higher temperature and then rapidly cooled. This process is called quenching. Because of quenching, the steel becomes extremely hard but also brittle. A solution to reducing brittleness without affecting the hardness, the material is reheated again and then left to naturally cool. This is called tempering. A combination of quenching and tempering results in Hardened Steel that can still be machined but without the risk of cracking.

“Up until the Edgewood Square announcement, Aldi’s plans for the Winn-Dixie and Harveys boxes has been relatively unknown, but from what we understand they are being thoughtful in the transition, with a specific strategy tied to each location,” Smith said.

When turning Hardened Steel, one option to opt for are CBN turning inserts. These ground inserts offer vastly improved cutting speeds, tool life and surface finish compared to standard carbide inserts. They are specifically designed for turning Hardened Steel between 50-70HRC. We offer a range of grades for various applications including continuous or intermittent Hardened Steel turning.

“That is huge in terms of financing options. When you have a credit tenant in there, the universe of financing options opens up. Your cost of capital will go down,” he said.

For instance, in the automotive industry (as well as mechanical and plant engineering), Hardened Steel is often used to create parts such as gears, bolts, cardan shafts and coupling parts. The hardness and strength make the material have a high strength-to-weight ratio, which supports any applications that are subjected to shock loads or wear and tear.

This all depends on what tool you are using, but in most cases, tool life will be higher and more consistent when cutting dry. Flood coolant should certainly be avoided on Hardened Steel, it can reduce tool life considerably.

Tool run-out is quite important when machining Hardened Steel because if the runout is greater than 0.01mm, the tool life can be greatly reduced. This is particularly relevant on some small-diameter tools where the chip load can also be doubled if the runout is too big. This makes choosing the right toolholder for your application an absolute priority. High-precision chucks negate the impact of tool runout. Please contact me or the Cutwel Technical Team for advice on choosing the right toolholder for machining Hardened Steel.

We have several Hardened Steel carbide drills from YG-1, Karnasch and Kennametal that are dedicated for high-performance drilling of 50-70HRC. They all have a lower helix angle than standard carbide drills which maximise rigidity.

A more cost effective option, but at the sacrifice of tool life, would be to go down the route of ceramic turning inserts. As a last resort, PCD Turning Inserts can also be used because the base of the material is made from Diamond which is the hardest in the world.

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X- Power Pro milling cutters from YG-1 are exceptional for dry high-speed cutting of Hardened Steel. Made from an ultrafine micrograin carbide, X-Power Pro is ideal for many Hardened Steel applications such as mold & die, tool making or high-precision machining. The range includes micro diameters from just 0.4mm and has a range of geometries including standard, corner radius, long neck, ball nose and 6-8 flute finishing tools.

Traditionally, machining Hardened Steel has always been a slow and time-consuming process. This was down to low cutting speeds and feeds being used, plus there was always a risk of deep stepped tool marks being formed on the workpiece due to the large cutting depths used, particularly when roughing. EDM (Electric discharge machining) can also be used on Hardened Steel which could end up being a very time-consuming and costly process.

Aldi could intercept the loss of some service amenities as it converts larger full-service stores to its smaller concept.

Eric Heninger, adjunct professor of accounting and finance at the University of North Florida Coggin College of Business, suggested July 12 that Pittman approach Aldi about the services that Harveys provides in her district.

While Aldi likely doesn’t have the space, nor the strategy, to provide the services, Aldi could help attract those to their operating areas.

“We’re highly doubtful we’ll see a one-size-fits-all strategy with this acquisition, given the varying dynamics for the shopping centers Winn-Dixie currently operates in,” she said.

4G Mills from YG-1 are ideal for Hardened Steels up 55HRC. This range boasts a huge selection of sizes including micro tools from just 0.03mm diameter and a huge range of geometries including standard, ball nose, 6 flute finishers and reduced neck options. Despite the majority of 4G mills being made from a premium micrograin carbide, the unique tool geometry and coating allow them to machine up to 1200°C with outstanding wear resistance making them suitable for Hardened Steel up to 55HRC. There are also a select few series made from a nanograin carbide substrate for higher-performance machining.

In the modern day, high-speed Hardened Steel tooling technologies now allow small cutting depths with large feed rates. These are increasingly becoming more prominent and replacing the older, more time-consuming methods.

Aldi said March 7 as it completed the acquisition that it could convert some of the 400 stores beginning in the second half of 2024.

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Hardened Steel is a more wear-resistant and durable carbon steel that has been specially treated to offer improved hardness and strength over softer steels.

A private company with U.S. headquarters in Batavia, Illinois, Aldi has not announced how many of 400 Winn-Dixie and Harveys supermarkets in Florida, Georgia, Alabama, Louisiana and Mississippi it will convert or which will remain as they are or which, if any, will be closed.

Due to the heat produced when machining Hardened Steel, you will require tools with a thermal barrier coating. In addition to this, cobalt content can also improve heat resistance and strength. Negative rake angle tools should also be adopted to protect the cutting edge against the hardness of the material.

Bring grocery bags, or else buy bags there – paper or reusable – or take one of the free boxes Aldi keeps in bins around the store.

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The chip load varies widely, if the load is too low or too high it will cause them to wear out too fast, chip or break. Lots of high speed and feed cuts with small depths is the best method for ensuring a quality product.

“I would think Aldi would bend over backward to facilitate other providers of services to come in and to help bridge that gap.”

About 50 Winn-Dixie and Harveys stores would begin the conversion process in late 2024 and reopen as Aldi stores in 2025.

After checking out, pack your own bags – at a counter along the front of the store, or take the cart to unpack at the car, or if you have a box, the cashier will stack your goods in that.

Winn-Dixie and Harveys claim dozens of locations in established markets and neighborhoods. Winn-Dixie’s predecessor company established its headquarters in Jacksonville in 1944 and changed the name to Winn-Dixie in 1955.

One major thing to look out for, which is key to maintaining tool life and machining quality, is maintaining a constant chip load on the tool’s cutting edge. In milling, for instance, the chip load equals feed rate divided by spindle speed, multiplied by the number of cutting flutes.

Once you have selected the right type of tool you then need to consider what cutting data (speeds and/or feeds) you should use. Where possible, always follow the supplier or manufacturer’s recommended cutting data. If you are unsure of what speeds or feeds to use when machining Hardened Steel please do not hesitate to contact me or any member of the Cutwel technical team for more advice.

CBN (Cubic Boron Nitride) is the 2nd hardest material, only surpassed by diamond, therefore CBN tooling is also commonly used in Hardened Steel applications due to its superior wear resistance and toughness.

“What we do know, is that Aldi is a well-loved brand within Northeast Florida that caters to a wide range of customers, so we anticipate the transition to Aldi to be a welcome addition to both consumers and retailers alike. “

The city is reviewing a permit application for T.D. Farrell Construction Inc. of Alpharetta, Georgia, to convert the 46,189-square-foot space into a 21,839-square-foot Aldi store at an estimated project cost of $1.7 million.

Should you need advice on machining Hardened Steel then please look no further than our expert technical team who boast a wealth of experience across a range of industries. We will be able to advise on tool selection, set up and machining methods to help you get the best from your Hardened Steel applications.

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Similar to Stainless Steel, Exotics (or Heat Resistant Super Alloys) are preferred where corrosion resistance is required. Not only that but Exotics also have a higher temperature resistance than Hardened Steel.

If the correct high-performance tool is selected, then the geometry of the flutes can be relied upon to control the heat, form the chips correctly and evacuate the swarf. This negates the requirement for coolant.

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“As we work through this transition period, conversion plans are still being finalized and we will share more information as it becomes available,” said Meredith Hurley, Southeastern Grocers senior director of communications and community, in an emailed statement.

That includes the first that emerged in Northeast Florida – the Harveys Supermarket in Edgewood Square at 2261 Edgewood Ave. in Northwest Jacksonville.

Despite Hardened Steel potentially being brittle or prone to cracking, Cast Iron is particularly more so (except for malleable cast iron).

She was drawing a parallel between the deals found at the wholesale warehouse clubs that, at an average 146,000 square feet, are more than six times the size of the average Aldi store, which is about 22,000 square feet.

Then there is the “Aldi Finds” aisle, also called the “aisle of shame,” where the chain stocks seasonal merchandise along with housewares, clothing, toys, décor, international or new foods, shoes, boots and swimsuits. The selection changes frequently. Facebook has 1.4 million members of the ALDI Aisle of Shame Community.

Aldi operates at least 13 stores in Northeast Florida, comprising eight in Jacksonville and five in Clay, Nassau and St. Johns counties.

Franklin Street Senior Vice President Carrie Smith said July 11 that she expects the conversions and market transition to unfold strategically.

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Typically Hardened Steels rank on the Rockwell scale between 40HRC and 70HRC. Materials between 55-70HRC would generally be classed as high Hardened Steels. To compare all the different types of Steel and where Hardened Steels rank on the Rockwell scale, please see a summary below:

Should you need to ream a Hardened Steel drilled hole, we also have a range of Carbide reamers for Hardened Steel up to 67HRC from Karnasch.

Aldi has about 2,400 U.S. stores and said the Southeastern Grocers acquisition is part of a plan to add 800 stores nationwide by 2028 through new openings and store conversions.

In this section, I will advise in general what to consider when choosing the correct tools for Hardened Steel machining. However, if you require specific tooling recommendations for dedicated Hardened Steel machining then please see here.

In Mold and Die, Hardened Steel is commonly used to construct the molds themselves. Despite its higher cost, it is chosen over other materials (such as Aluminium) due to the longer life span which outweighs the initial investment over a larger number of parts.

On the lower end of the budget, general-purpose coated carbide cutters such as K2 Carbide, NC Mills or Mammut Carbide can machine Hardened Steel up to 45HRC, but depending on your setup and machining capabilities, we would advise you to progress to a higher performing range such as 4G Mills or X-Power Pro to get the best results.

“For me, shopping a clean store is imperative and it is important that you have fresh food, the lighting is good, and the prices,” she said.

Aldi claims customers can save up to 40% on their grocery bills compared with traditional supermarkets and more than 15% compared with big-box discounters.

Bring a quarter for the cart, but chances are another shopper in the parking lot will give you theirs – maybe for your quarter, or maybe gratis – so they don’t have to return it to the storefront corral to reconnect it to retrieve the coin. They likely found it free, too.

Also on harder materials, thermal shock can occur, therefore air jet cooling, oil mist or air mist can be used. Jet cooling is the best option however as it eliminates any requirements for the tool to withstand rapid and severe temperature changes.

It said in August when it agreed to buy Southeastern Grocers that it intended for “a meaningful amount of Winn-Dixie and Harveys Supermarkets to continue to operate under their current banners.”

“Given the size difference between Southeastern Grocers’ footprint and Aldi’s, we anticipate there being opportunity for retailers in the 10,000-20,000 SF range to take advantage of Aldi rightsizing most, if not all, of the boxes,” Smith said by email. “Because of the continued demand for space in our market, this inventory should lease up relatively quickly.”