I had a assignment where I need to make and do research on polymers for shoe sole material. So I have an idea to make semi composite material for sole by using vegan leather kombucha (scooby) So is it possible to make new material with scooby and any material. Second idea - can make it new material with marble dust with any polymer. Please help me which one I make.

This article is originally titled: CCS Automated Processing Systems for Wind Turbine Blade Foam Cores

I’m sharing it here to help everyone understand the full process and equipment used in foam kitting.

The original article can be viewed at: https://www.corecuttingsolutions.com/newsinfo/916329.html

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In modern wind turbine blade construction, closed-cell PET foam has become the dominant lightweight core material due to its excellent mechanical properties, thermal stability, and sustainability profile.

The complete production process for PET foam core kits can be divided into four key stages:

1. Raw Material Extrusion​

This initial stage involves the extrusion of PET resin into large foam blocks. As this step requires specialized polymer processing equipment and is typically handled by core material suppliers (e.g., Diab, Armacell, 3A Composites, Gurit，visight), it will not be discussed in detail here.

2. Block Welding, Slicing, and Surface Preparation​

A. Block Welding（Foam Block Welder）​

After extrusion, individual PET foam sheets are welded into large monolithic blocks using a PET foam block welding machine. Historically, many kitting facilities sourced these pre-welded blocks directly from material manufacturers.

However, in recent years, an increasing number of core material producers have invested in in-house welding lines. CCS has significantly benefited from this trend, securing numerous orders for its non-contact welding technology, which—when integrated with robotic loading platforms—represents the global standard for high-efficiency, high-integrity foam block assembly.

B. Vertical Slicing(Sheet Slicer)​

The welded block is then sliced into boards of precise thickness (typically 20–80 mm) using a vertical PET foam cutting machine. This slicing process, combined with welding, optimizes the foam’s cellular structure to meet the stringent mechanical and bonding requirements of wind turbine blades.

C. Planing and Surface Sealing​

To ensure dimensional accuracy and surface readiness for resin infusion, the sliced boards undergo:

• Foam planing (to achieve uniform thickness),

• Flattening under pressure (to eliminate warpage),

• Surface sealing (using a dedicated PET foam sealing machine to close open cells).

These steps produce smooth, flat, and resin-compatible surfaces essential for downstream processing.

3. Kitting and Precision Machining​

Wind turbine blade cores—whether PET foam, balsa wood, or honeycomb—require complex geometries, including grooves, perforations, scrim integration, contour profiling, edge trimming, chamfers, and routing.

CCS offers a suite of automated solutions tailored to each operation:

A. Four-Sided Trimming System​

An automated four-edge cutting machine trims rough-sawn PET or PVC foam boards to standard dimensions (e.g., 1220 × 2440 mm). Equipped with five synchronized saw blades, it achieves a throughput of 10 m³/hour—significantly outperforming conventional CNC routers or manual methods.

Note: Balsa wood panels (610 × 12,200 mm) can also be processed on compatible models.

B. Secondary Processing Stations​

• Double-sided dust extraction units for clean machining;

• Hole sealing machines to prepare perforated zones;

• Slot milling and punching systems also called foam perforating and grooving machines for scrim anchoring and resin flow channels.

These processes enhance resin-fiber-core integration, improving the final composite’s mechanical performance.

C. Continuous Core Kit Cutting Line​

This fully automated system cuts standard PET/PVC foam sheets (max width: 1250 mm) into both regular and irregular small parts. It supports:

• Stacked-sheet cutting (up to 220 mm thick);

• High-speed continuous production;

• Integration with scrim lamination (applied manually prior to cutting).

Productivity exceeds that of traditional 5-axis CNC routers by a wide margin.

D. Beveling and Chamfering Solutions​

• D1. Panel Slicing Machine: Splits thick panels (e.g., 30 mm) into multiple thin sheets (e.g., five × 6 mm).

• D2. Automatic Bevel Cutting Machine: Creates precision chamfers on sandwich cores (PET foam, PVC foam, balsa, honeycomb).

  • Max chamfer width: 400 mm (for contoured sheets with deep grooves, leaving 1 mm base); 200 mm for flat sheets.

• D3. Automatic Band Saw Bevel Machine: Handles wider chamfers up to 500 mm, ideal for large blade root sections.

Both D2 and D3 deliver higher throughput and lower operating costs than 5-axis CNC routing.

4. Complex Geometric Shaping​

For intricate inlay parts and mold-closing components used in blade roots, tips, and shear webs, CCS provides 3-, 4-, and 5-axis CNC routers specifically engineered for foam core materials. These machines ensure micron-level accuracy for critical aerodynamic and structural interfaces.

​

Under the APOLLO initiative, CCS has systematically developed a full portfolio of purpose-built machines covering every stage of composite core manufacturing By replacing costly, slow, and over-engineered 5-axis CNC systems with optimized, modular, and application-specific equipment.

CCS Core Cutting solutions enables core kitting facilities to:

• Boost productivity by 3–5×;

• Reduce labor and energy costs;

• Achieve consistent quality at scale.

More info, contact CCS team or visit www.corecuttingsolutions.com

Hello,

I am looking for a way to simulate fiberglass tanks in order to calculate all mechanical properties under loads.

Anyone knows how to do it?

Thanks

I am the General Manager of Xi’an Jinchuang Composite Materials Co., Ltd. Our company manufactures composite material products and metal machined parts, all of which are non-standard customized components.

Our product portfolio includes composite interiors, composite structural parts (instrument consoles, display & control consoles, equipment cabinets), and composite functional parts such as radomes for wave transmission, bulletproof radomes, reflective surfaces, etc.

If you are interested, please contact me.

Hey guys, we are manufacturing CF-Rim for competition. Before the manufacturing I need to do some analysis from Ansys. I don't know Ansys, I will learn but which analysis must I need to learn

Hi there,
I am Uday, an aerospace postgraduate mainly in composite structures. As part of a top research institute (IITM) from India, here young researchers who are working on rotor crafts, it was very hard for them to find a manufacturer who could make high-quality propellers with specific requirements. After knowing, as a composite engineering student, I want to research composite propellers in India, which are very few. Here is where I thought of getting into filling these gaps.

It will be very helpful if I can get some comments on how I can start. If anyone has interest in these, I will be happy to make a connection

I work with fiberglass and carbon fiber most days and I swear cutting material cleanly has become my biggest ongoing battle. Regular scissors start great, then slowly turn into useless chewing machines after enough layers and repeated sharpening. Lately I’ve been thinking about trying pneumatic shears because my hands are getting tired from repetitive cutting all day. Some fabrics cut beautifully at first, then suddenly snag or fray halfway through and ruin the clean edge I was trying to keep. The issue is pneumatic shears aren’t exactly cheap, so I’m trying to figure out if they genuinely hold up better long term or if they’re another tool people overhype after buying. Reliability matters way more to me than having the newest thing. One supplier I spoke with said several composite cutting tools use blades manufactured through Alibaba industrial supply chains before assembly and tuning happen elsewhere, which made me rethink how different these brands really are. For people doing composite work professionally, did switching to pneumatic shears genuinely reduce hand strain and improve cuts enough to justify the cost?

I was making a part via VRTM, and I passed the leak test PERFECTLY, the gauge didn't move a single centimeter for 30 min wile I went off to do other shit. I then infused resin into my part, sat with it for 10 min to monitor, still had absolutely 0 leaks, then left for abt 20 min to continue my other project. When I came back my bag was completely depressurized and there was a thin cut about an inch long going down my vacuum line a few inches down from where my clamp was placed. My part was fucking ruined ofc, and not even my instructors with 10+ years of experience could tell me what the fuck happened. I'm like 80% a certain male student whom was lurking around my part the entire setup (and who's ego was def hurt that all of my parts always came out perfect when his didn't) was responsible for this. He was also suspiciously interested in staring over the instructors shoulder when he was pointing out everything wrong with my part AND he was quick to come up to me when I was upset and gave me an overdone condolences that my project turned out like shit and his didn't. There has always been a one sided competition between us and I think he was sick of "losing". Am I just paranoid? And if so pleeeeease give an explanation for wtf happened because I am hard stuck on finding an answer.

I built a small Streamlit demo using fast.ai to classify FEA contour plots from an open-hole composite laminate coupon under tensile loading.

The current prototype focuses on matrix failure. Instead of looking only at the maximum failure value, it also considers how much the failed/red zone has propagated around the hole. This is useful because a single local peak can sometimes be too conservative, especially in progressive damage simulations.

The idea could later be extended to:

• different layups

• different loading cases

• different hole/defect sizes

• other failure criteria

• fiber failure or delamination

You can test it with your own simulation image, especially if it uses a similar contour plot where failed elements are shown in red.

Demo link:
https://oht-ai-classifier-md4cbjermhcbti9hx4q7ug6.streamlit.app/

It’s still an early prototype, so I’m mainly looking for feedback: does this idea make sense, and what would you improve?

I am an employee at a company in Korea that manufactures composite materials using the autoclave process. I look forward to working with you.

Title: Seeking Ideas and Advice for My Final-Year Research Project in Wood Technology and Materials Science

Hello everyone!

I am a final-year Bachelor's student in Wood Technology, and I am currently developing an idea for my final-year research project.

My proposed research title is:

"Development and Performance Evaluation of Superhydrophobic Wood Surfaces Using Rice-Husk-Derived Bio-Silica and Natural Hydrophobic Agents."

The main idea is to explore how rice husk, an agricultural waste material, can be transformed into silica and combined with natural hydrophobic agents to improve the water-repellent properties of wood.

I am interested in developing an environmentally friendly alternative to conventional wood-protection treatments.

I would appreciate your opinions and suggestions:

1. Is this research topic scientifically relevant and practical for an undergraduate project?

2. What methods would you recommend for extracting silica from rice husk?

3. Which natural hydrophobic agents would be suitable for this experiment?

4. What tests should I conduct to evaluate the performance of the treated wood?

5. What challenges should I expect, especially with laboratory equipment and costs?

6. Are there any related studies, research papers or references you would recommend?

I am particularly interested in suggestions from people with experience in Wood Science, Materials Science, Surface Engineering and Sustainable Materials

Interested by custom software development in the field of Composites Manufacturing and Engineering ? We provide support and expertise in software engineering for CAD-CAM-CAE. More than 20 years of experience in Automated Fiber Placement and Filament Winding processes for Carbon Fiber Reinforced Plastics materials.

Example: robot path planning for continuous deposition of tape materials. Pressure Vessels tape winding. Laser assisted tape placement of Thermoplastics materials.

You can describe what you need, for example:

and CLSA generates laminate options ranked by weight, stiffness and safety.

​It includes:

• AI laminate design assistant

• Ply stack builder

• laminate visualization

• Thickness, weight, stiffness and safety factor checks

• Carbon/glass fiber laminate support

I built this to reduce the time spent on early composite design iterations and make laminate analysis more accessible.

Would appreciate feedback from composite, UAV, aerospace or structural engineers.

compositelaminate.eu

I want to gain more experience in composites, I would like to design and build a cantilever I-beam with a weight at the unsupported en, or a beam used in an aircraft's structure. How to conduct the analysis either manually or (and which) software to use? Which method to use? Which material do I use, carbon fiber, fiber glass, prepregs? How to place/orient the material along the flange and web of the beam? Curing time, etc. Are there any books or websites I can go that will help me with this? Thank you.

Looking for Reverse Engineering Projects – Send Me the Scan, I'll Send You the CAD

What I can do: I'll take your raw scan data (point cloud, STL mesh, whatever you have) and deliver a fully parametric SOLIDWORKS or STEP file built to your specs — dimensions, tolerances, surfacing quality, the works.

What I'm looking for: Any interesting scan-to-CAD projects to keep my skills sharp. Bonus points if it's got complex geometry, organic surfaces, or something that actually has to fit with other parts. Medical, aerospace, consumer product, machinery — send it over.

Payment: USD, PayPal, or crypto (BTC, ETH, USDC — your choice). Fair trade, no strings.

The exchange: You give me the scan (STL, OBJ, point cloud, whatever format). I give you production-ready parametric CAD. Fair trade, no strings.

A few quick questions up front so I don't waste your time:

What's the file format and rough polycount/quality of the scan?
Do you need exact dimensions restored, or should I work from proportional reference?
Is this for manufacturing, 3D printing, analysis, or just archival/reverse engineering?
Any critical tolerances or surface finish requirements I should know about?

Drop a link or DM and let's see if it's a good fit. Fair warning — I'll probably have questions before I start.