Chinese Language & Literature: Subject Guide: Web Resources - chinese-tools.com

2024-06-25 13:31:24

PVD coating reduces friction between moving parts in the motor, improving the overall efficiency of vehicle performance.

Is it reasonable to ask that some kind of "build warning" message be added to the (partial) threading tool to notify the user that the partial threading will actually affect the entire surface?

Abstract: In recent years, numerous discoveries and investigations have been remarked for the development of carbon-based polymer nanocomposites. Carbon-based materials and their composites hold encouraging employment in a broad array of fields, for example, energy storage devices, fuel cells, membranes sensors, actuators, and electromagnetic shielding. Carbon and its derivatives exhibit some remarkable features such as high conductivity, high surface area, excellent chemical endurance, and good mechanical durability. On the other hand, characteristics such as docility, lower price, and high environmental resistance are some of the unique properties of conducting polymers (CPs). To enhance the properties and performance, polymeric electrode materials can be modified suitably by metal oxides and carbon materials resulting in a composite that helps in the collection and accumulation of charges due to large surface area. The carbon-polymer nanocomposites assist in overcoming the difficulties arising in achieving the high performance of polymeric compounds and deliver high-performance composites that can be used in electrochemical energy storage devices. Carbon-based polymer nanocomposites have both advantages and disadvantages, so in this review, attempts are made to understand their synergistic behavior and resulting performance. The three electrochemical energy storage systems and the type of electrode materials used for them have been studied here in this article and some aspects for example morphology, exterior area, temperature, and approaches have been observed to influence the activity of electrochemical methods. This review article evaluates and compiles reported data to present a significant and extensive summary of the state of the art. Keywords: carbon-based polymer nanocomposite; energy storage; fuel cell; electrochemical devices

Oops, pardon my typo. I meant "face". While you could split the body and later combine them, I would not recommend it. Splitting face is the underlying desired behavior.

Thread depth and hole depth clearance

Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.

How about this... If I have a 50-ft long x 2-ft diameter rod, and I want the last inch of it to be 1/4-20, how about just DON'T reset the diameter of the whole thing, huh? At least not by default and without notification. That's just silly.

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Bolts have very different "shaft" sizes, because the shoulder is not part of the threading calculation. Some bolt styles have different shaft sizes too, for the same thread. So it gets complicated fast, perhaps too much so for the Thread command dialog.

Siwal SS, Zhang Q, Devi N, Thakur VK. Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications. Polymers. 2020; 12(3):505. https://doi.org/10.3390/polym12030505

Od threadingmachine

@chrisplyler Got it. Suggested improvement is logged as such: "split the body where the thread ends when user applies partial threading to a cylinder in order to preserve as-designed diameter of holes/shafts".

The work required is actually a huge task. The thread command would have to improve in order to allow the customer to pick their own shaft size, and that would vary with every customer potentially.

Siwal, S. S., Zhang, Q., Devi, N., & Thakur, V. K. (2020). Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications. Polymers, 12(3), 505. https://doi.org/10.3390/polym12030505

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Yeah, you're totally right. I didn't think a split FACE would allow a diameter change of the underlying feature. But I was wrong.

That's expected behavior for the thread tool. it will change the size of your cylinder or hole to be what it needs to be for the thread you pick.

Protolabs threaded inserts

Fusion does not include the concept (as Inventor does) of modeling using Major, Minor, and Tap diameter as a user preference. What Fusion does do is provide a shaft or hole size in the nominal spec range for the thread, or at least it tries, for the purpose of tapping or threading by machine. (if you find exceptions please post them!) But not nominal bolt shoulder sizes.

Max tap depth

Anyway, I'm a Solidworks guy who's used to having to spend an hour painstakingly modelling the helical cut path and the threading profile the hard way. F360's thread tool is a huge timesaver even though it is a compromise between control and efficiency. I can live with doing the surface split by hand

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Totally unexpected and illogical to have a partial thread reduce the diameter of the entire rod. I modeled a 20' piece of 1" black pipe with only about 1" on each end threaded -- why should the entire pipe have its diameter reduced?

Od threadingprice

Okay. Strangely enough, splitting the face was what I had originally tried because I didn't know the threading tool had this facility built in.

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Siwal, S.S.; Zhang, Q.; Devi, N.; Thakur, V.K. Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications. Polymers 2020, 12, 505. https://doi.org/10.3390/polym12030505

Hole size for Thread

Od threadinglathe

I have a cylinder and have tried to add a partial thread to the outside of it. The original cylinder was 0.312 inch OD. The thread was "(5/16)-18" male.

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If the current accepted solution to this issue is for the user to perform a surface split on the cylinder, then how about an option to make the Thread tool perform the split on the user's behalf? That would be quite a neat way to do it without actually having to rework the entire threading system. The axis of the cylinder and the thread length and offset are known, so the split plane is known.

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This makes my bolt shoulder (the smooth section) 4 thou smaller than I had designed it (enough to push it out of acceptable tolerances!).

Siwal, Samarjeet Singh, Qibo Zhang, Nishu Devi, and Vijay Kumar Thakur. 2020. "Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications" Polymers 12, no. 3: 505. https://doi.org/10.3390/polym12030505

I think - to be technically correct within the context of how Fusion works - it should be "split the body, apply the thread to one of them, and then join them back together."

Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive positive feedback from the reviewers.

Bolt generator? Sure. But I assume you (=Autodesk) do not really need feedback like this. The "3D-Mechanical Design and Product Development" market is decades old and matured, there are a lot of well established solutions, Autodesk with Inventor is one of the key players in this market - so there should be no real surprises regarding customer requirements for this specific market.

Siwal SS, Zhang Q, Devi N, Thakur VK. Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications. Polymers. 2020; 12(3):505. https://doi.org/10.3390/polym12030505

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Threaded hole design Guidelines

Were this a real lathe-threading operation, the shoulder would not magically shrink by 4 thou. This problem does seem to be reproducible.

After adding the partial length thread, the OD of the remaining unthreaded section of the original cylinder (the smooth part that should not have been affected) had shrunk to 0.308 inches! I did not notice this until way later when I was doing the 2D drawings for the part.

The thread was not the full length of the cylinder though, only the first half or so. No errors or warnings were encountered during this, but the end result was most definitely not expected.

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The original cylinder was 1.5 inches long and the thread was set to affect only the first 0.750 inches. All of this takes place within the "Model" environment.

Siwal, S.S.; Zhang, Q.; Devi, N.; Thakur, V.K. Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications. Polymers 2020, 12, 505. https://doi.org/10.3390/polym12030505

Both of these options are directly intended for CAM operations, not modeling standard hardware that may have completely different specs.

I guess the more important question regarding the mechanical market is the overall positioning/focus/concept/strategy of Fusion 360. Of course I don´t expect public answers here. Time will tell, it will be exciting.

At least Autodesk is aware that it is a "problem" -> https://forums.autodesk.com/t5/fusion-360-design-validate/modeled-thread-diameter-problem/m-p/730951...

2. It seems not, but changing this seems to cause a warning in subsequent operations. But since this is "expected behaviour", this isn't a problem.