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显示标签为“sintered metal”的博文。显示所有博文

2015年8月5日星期三

powder metal-Features Of Diamond Blades


Diamond blades asinetalre often used in construction to cut denser material such as glass, stone and metal。 Many companies produce diamond blades to be used for different functions。A diamond saw blade is a saw blade with diamonds on the end。 It is used to cut tougher materials such as concrete, asphalt and bricks。 There are many different types of diamond blades, but all of them serve the same purpose。 They can be used for circular saws, band saws and gang saws。 If categorized by their style, diamond blades are available in different types: circular saw blades,sinteal gang saw blades and band saw blades。Most diamond blades are of this style。 A diamond gang saw blade is a long steel plate with segments of diamond welded on it。 Normally, a group (tens or even hundreds) of diamond gang saw blades are used together to saw raw stone blocks。 A diamond band saw blade is a flexible closed steel band with diamonds fixed (often via the electroplating method) on the teeth of one side of the band。

Diamond Hardness

* Diamonds are the strongest and hardest natural resource available, when compared to any other natural minerall

Diamonds Utilized to Cut

* Due to the hardness of a diamond it is often used to cut through many other minerals。 This helps a lot of people in construction or people who have to manipulate other hard, dense objects。

A diamond blade is a saw blade which has diamonds fixed on the blade´s base to use the diamonds to cut hard or abrasive materials。 There are many types of diamond blades, and they have been applied in many industries, for example, construction industry to cut stone, concrete, asphalt, bricks, coal balls glass and ceramics, IT industry to cut semiconductor materials, and gem industry to cut gem stones including diamonds。

A diamond saw blade is a saw blade with diamonds on the end。 It is used to cut tougher materials such as concrete, asphalt and bricks。 There are many different types of diamond blades, but all of them serve the same purpose。 They can be used for circular saws, band saws and gang saws。 If categorized by their style, diamond blades are available in different types: circular saw blades, gang saw blades and band saw blades。 Circular diamond saw blades are commonly sighted and the most widely used。 Most diamond blades are of this style。 A diamond gang saw blade is a long steel plate with segments of diamond welded on it。 Normally, a group (tens or even hundreds) of diamond gang saw blades are used together to saw raw stone blocks。 A diamond band saw blade is a flexible closed steel band with diamonds fixed (often via the electroplating method) on the teeth of one side of the band。

There are many methods to attach diamonds onto the saw blade´s base。 A common method is sintering the mixture of diamonds and metal powders are formed to the blade´s cutting edge diamond segments, and the produced diamond blades can be called powal-bonded diamond blades。 Other methods include electroplating, vacuum brazing, extruding and so on。

2014年9月21日星期日

sintered metal-Scientists Build a Low-Cost


OK, so maybe yousintered metal aren´t interested in making your own toys, cellphone cases, or glow-in-the-dark Christmas decorations。 How about a brake drum?

Until now, 3D printing has been a polymer affair, with most people in the maker community using the machines to make all manner of plastic consumer goods, from tent stakes to chess sets。 A new low-cost 3D printer developed by Michigan Technological University´s Joshua Pearce and his team could add hammers to that list。 The detailed plans, software and firmware are all freely available and open-source, meaning anyone can use them to make their own metal 3D printer。

Pearce is the first to admit that his new printer is a work in progress。 So far, the products he and his team have produced are no more intricate than a sprocket。 But that´s because the technology is so raw。 "Similar to the incredible churn in innovation witnessed with open-sourcing of the first RepRap plastic 3D printers, I anticipate rapid progress when the maker community gets their hands on it," says Pearce, an associate professor of materials science and engineering/electrical and computer engineering。 "Within a month, somebody will make one that´s better than ours, I guarantee it。"

Using under $1,500 worth of materials, including a small commercial MIG welder and an open-source microcontroller, Pearce´s team built a 3D metal printer than can lay down thin layers of steel to form complex geometric objects。 Commercial metal printers are available, but they cost over half a million dollars。

His make-it-yourself metal printer is less expensive than offpowder metal-the-shelf commercial plastic 3D printers and is affordable enough for home use, he said。 However, because of safety concerns, Pearce suggests that for now it would be better off in the hands of a shop, garage or skilled DIYer, since it requires more safety gear and fire protection equipment than the typical plastic 3D printer。

While metal 3D printing opens new vistas, it also raises anew the specter of homemade firearms。 Some people have already made guns with both commercial metal and plastic 3D printers, with mixed results。 While Pearce admits to some sleepless nights as they developed the metal printer, he also believes that the good to come from all types of distributed manufacturing with 3D printing willpowder metal far outweigh the dangers。
In previous work, his group has already shown that making products at home with a 3D printer is cheaper for the average American and that printing goods at home is greener than buying commercial goods。
In particular, expanded 3D printing would benefit people in the developing world, who have limited access to manufactured goods, and researchers, who can radically cut costs of scientific equipment to further their science, Pearce said。 "Small and medium-sized enterprises would be able to build parts and equipment quickly and easily using downloadable, free and open-source designs, which could revolutionize the economy for the benefitsintered metal of the many。"

"I really don´t know if we are mature enough to handle it," he added cautiously, "but I think that with open-source approach, we are within reach of a Star Trek-like, post-scarcity society, in which ´replicators´ can create a vast array of objects on demand, resulting in wealth for everyone at very little cost。 Pretty soon, we´ll be able to make almost anything。"