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Submission + - CNC Cutting Tool Selection and Cutting Amount Determination (

cherishjoo writes: CNC machining technology is the foundation and core of advanced manufacturing technology CNC machine tools are the basis of factory automation CNC cutting tool is an indispensable key for CNC machine tools which is believed to be able to improve the processing performance and plays a decisive role production efficiency in CNC machining.

Submission + - Polyurethane PU Mould Release Agent in RIM Molding (

cherishjoo writes: In order to improve production efficiency, the release agent of polyurethane in RIM moulding is developed as an important additive for RIM polyurethane (urea) The internal release agent is a starting agent that is added to the formulation and can be partially migrated to the surface of the product during the polyurethane molding process.

Submission + - Polyurethane Foam Moulding in Reaction Injection Molding (

cherishjoo writes: PU moulding products are usually prepared by Reaction Injection Molding process. The cost reduction and excellent performance make polyurethane foam moulding expand itself to not only chassis, furniture industry, but also sports equipment, construction industry, automobile industry, public health facilities, military industry and many other aspects.


cherishjoo writes: The rapid prototyping technology has brought new concepts to manufacturing and has been widely used in many fields. It has become an important supporting platform for modern design. With the rapid development of CNC machining technology as well as rapid prototyping, the requirements for prototypes are more careful, thorough, and exact not only on shape, precision and assemble capability, but also on material, surface quality, transparency and so on.

However, the current rapid prototyping technology, due to the limitation of molding materials and manufacturing accuracy, is difficult to meet these requirements. Rapid CNC Machining is right here to make up for these deficiencies: Most of the functional materials used in rapid prototyping can be CNC machined directly.

Submission + - Is 3D printing out of date? 4D printing makes things in science fictions come tr (

cherishjoo writes: While we are talking about 3D printing technology, you must be quite familiar with it. But what about 4D printing? Did you ever hear about it?

Recently, a team of scientists at the Massachusetts Institute of Technology, with the help of 3D printing technology, transformed the original object after printing to produce a new lightweight material that was ten times stronger than steel with only 1/20 of weight, making 4D printing another milestone in printing history.

In addition to 3D printing, which has three-dimensional structure, 4D printing adds a new dimension, which is TIME, which means things printed by 4D printing can no longer exist in a fixed form, but can be set according to the pre-set time, under certain conditions.

Submission + - The emergence of "4D printing" (

cherishjoo writes: 3D printing has grown in sophistication since the late 1970s; TED Fellow Skylar Tibbits is shaping the next development, which he calls 4D printing, where the fourth dimension is time. This emerging technology will allow us to print objects that then reshape themselves or self-assemble over time. Think: a printed cube that folds before your eyes, or a printed pipe able to sense the need to expand or contract.

Comment I am looking forward to Self-Driving Cars (Score 1) 250

I am looking forward to Self-Driving Cars and hope Google and other companies will be able to make it on the market as soon as possible. I like it just because it would be much safer that human drivers as I see too many car accidents just because of the drivers' careless driving, drunk driving,furious driving and answering phones while driving. There are too many problems to solve, but safety should always come first and it means a lot to me, to you, to our families and friends.

Submission + - Curved TV isn't dead yet. Thanks, Samsung (

cherishjoo writes: When the first curved TVs appeared more than three years ago I asked whether they were a gimmick.

As a TV reviewer I had to give the curve a fighting chance, however, so I took a curved Samsung home to live with my family for awhile, in addition to subjecting it to a full CNET review.

In the end, I answered my own question with the headline "Great picture quality, but the curved screen is a flat-out gimmick." Since then most of the video geeks I know, including just about everybody I hear from on Twitter, Facebook and article comments, pooh-poohs curved TV screens as a useless distraction.

A curved TV takes the traditional flat screen and bends it along a gentle arc. The edges end up a bit closer, ostensibly providing a slight wraparound effect. Curved TV makers, citing huge curved screens like Imax, call their sets more "immersive" than their flat counterparts, but in my experience that claim doesn't hold water at in-home (as opposed to theatrical) screen sizes and viewing distances.

The only real image-quality benefit I saw to the curve was a reduction in reflections in some cases. That benefit wasn't worth the slight geometric distortions introduced by the curve, not to mention its awkwardness when hung on the wall. That said, the curve doesn't ruin an otherwise good picture.

In TVs, assuming similar prices, curved vs. flat boils down to a choice of aesthetics.

Submission + - Intel supercharges Atom chips with 16 cores and pro-level features (

cherishjoo writes: Intel’s Atom was mostly known as a low-end chip for mobile devices that underperformed. That may not be the case anymore.

The latest Atom C3000 chips announced on Tuesday have up to 16 cores and are more sophisticated than ever. The chips are made for storage arrays, networking equipment, and internet of things devices.

The new chips have features found mostly in server chips, including networking, virtualization, and error correction features.

[ Further reading: We tear apart a hard drive and SSD to show you how they work ]
Networking and storage devices don’t require a lot of horsepower, so the low-power Atom chips fit right in. Only a handful of Intel server chips have more than 16 cores, but the number of Atom cores means the chip can handle more streams of data.

The Atom C3000 fits right into Intel’s long-term plan to grow in the server, IoT and storage markets.

Intel quit making Atom chips for smartphones last May, and the chip lineup was reconfigured to include E3900 chips for IoT devices and the T5700 and T5500 chips used on the Joule maker boards.

Chinese chip maker Rockchip is still making variants of the older Sofia 3G chip, which is now being redirected to low-power IoT devices.

A surprising feature in C3000 is RAS (reliability, availability, and serviceability) capabilities, which is mostly found on high-end Xeon chips. The feature corrects data errors on the fly and prevents networking and storage equipment from crashing.

Intel is also providing development kits for writing storage and networking applications for the chips.

The new chips are already shipping to testers and will become available in the second half of this year.

The Atom C3000 succeeds the older C2000 chips, which were originally targeted at microservers and networking and storage equipment. The Atom C2000 chips recently ran into trouble with a flaw that could crash servers and networking equipment. Intel has provided a temporary fix, but the company is working on a permanent fix.

Intel also introduced new Xeon D-1500 chips for networking and storage gear that require quicker turnover of processed data. The chips integrate 10-gigabit ethernet controllers and have a technology called QuickAssist to drive throughput of compressed data up to 40Gbps (bits per second).

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