Dr. Ed Pope

Pro-tip: Gage Pins just for production (separate from QC lab) ensure quality at the source. Use ones with Black Oxide coating which provide visual wear recognition for replacement during 5S audits. I recommend Vermont Gage's Black Guard™ which is a black oxide treatment that penetrates .000040" - .000060" deep. Besides visual wear indicator, it provides rust and corrosion protection too. We have 2 sets of gage pins for both Go (Plus) or NoGo (Minus) from .005" to 1.00" and the same for Metric too, which comes in really handy! The pin sets on the floor are Class ZZ which means they are .0002" or 0.005mm tolerance and are round within .0001" or 0.0025mm. The gage pins in our QC lab are Class X, meaning they an inch tolerance of .00004" and a metric of . 001mm. Our Lab class X pins are also used as masters to validate measuring equipment every morning too before use and often several more times during the day as well, such as checking linearity of comparators, micrometers, and calipers in QC lab. These round masters simulate a cylindrical part which, unlike flat blocks, can detect uneven wear on the tips of micrometers and calipers. The result is the thin “line” of contact detects uneven face wear better than flat gage blocks with large contact area. Although its origin is lost in the mists of time, best measurement practices call for you to use what industry insiders call the 10 to 1 rule. Gages need to be ten times more sensitive than the tolerance of the characteristic you are measuring. So to properly measure 1.000” ± .005”, which has an overall tolerance of .010”, you need a gage with the ability to measure .001” or one-tenth of the tolerance. Anything less (than 10x) is just a guess! Gaging is an integral part of quality planning simply because you can't make what you can't measure. The types of gages, the frequency with which you use them, and the methods used to assure their suitability should be baked into your control plan, PFEMA, FAIR, and ideally validated with the customer (what's their receiving inspection method?) that brought you the order in the first place. #aerospace #swissmachining #cnc #cncmachining #machineshop #quality

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We're #swissmachining rocketry thermocouple elements from Alumel and Chromel - nasty materials to machine, ugh! (Fyi melting point ~ 1440 °C !!) These two interesting materials were developed by Albert L. Marsh in 1906, out of research aimed to develop a substitute for the expensive platinum thermocouple alloys then in use. Chromel is a nickle-chromium alloy and alumel is an alloy of nickel and aluminum. The use of the high-resistance chromel as a heating element was patented in 1906. Alumel is an alloy consisting of approximately 95% nickel, 2% aluminium, 2% manganese, and 1% silicon. This magnetic alloy is used to make the negative conductors of ANSI Type K (chromel-alumel) thermocouples and thermocouple extension wire. Type K thermocouples are so popular because of their wide temperature range and durability, and are more chemically inert than other Type T (copper) and Type J (Iron) conductors. Chromel-alumel thermocouples (Type K) are a widely used, general purpose device with a measurement sensitivity of 41 μV/°C. Their output characteristic is particularly linear over the temperature range of 700–1200°C, and this is therefore their main application, although their full measurement range is −200°C to +1300°C. They are used in many industries like Steel & Iron to monitor temperature & chemistry through out the steel making process The type K is also commonly found in #nuclear applications because of its relative radiation hardness. #manufacturing #swisslathe #cnc #cncmachining #machining #sensors #thermocouple #aerospace #georgia

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Certainly! Let's explore how Lockheed Martin's mobility research and development (R&D) programs intersect with the scenarios we discussed earlier: 1. **Assured Autonomy and Systems:** - Lockheed Martin's ATL (Advanced Technology Laboratories) focuses on autonomy, robotics, and artificial intelligence³. Their work in assured autonomy aligns with the adaptability needed for spaceflight and underground living. Autonomous systems can handle resource management, adapt to changing conditions, and operate efficiently in confined spaces. - Overlay: Imagine a diagram showing an autonomous system managing resources in a small space—whether a van, underground shelter, or spacecraft. 2. **Command, Control, and Understanding (C2&U):** - ATL's C2&U research involves understanding complex systems and decision-making³. In close quarters, effective command and control are critical. Whether in a van or a bunker, efficient communication and decision processes matter. - Overlay: Visualize a network connecting van occupants, bunker residents, or astronauts, emphasizing communication hubs and decision nodes. 3. **Spectrum Operations:** - ATL explores spectrum operations, including communication, radar, and electronic warfare³. In confined environments, managing electromagnetic spectrum usage is vital. Vans, bunkers, and spacecraft all rely on communication frequencies. - Overlay: Show overlapping frequency bands representing different systems—van communication, bunker sensors, and spacecraft telemetry. 4. **Cybersecurity:** - ATL's cyber research addresses security threats and vulnerabilities³. In close quarters, protecting data and systems is crucial. Vans, bunkers, and spacecraft all face cyber risks. - Overlay: Depict a shield protecting interconnected devices in various scenarios—van electronics, bunker control systems, and spacecraft avionics. 5. **Hypersonics:** - While hypersonics primarily relate to high-speed flight, the underlying technology has applications in various domains. ATL's hypersonics research contributes to cutting-edge propulsion and materials³. - Overlay: Represent hypersonic airflow around a van, a bunker entrance, and a spacecraft reentering Earth's atmosphere. Remember, Lockheed Martin pioneers advancements in AI-driven technologies, which can enhance all these areas³. Their work contributes to global security and technological transformation. 🚀🌎🔍¹³ Source: Conversation with Copilot, 6/7/2024 (1) Advanced Technology Laboratories | Lockheed Martin. https://lnkd.in/gSWTBnde. (2) . https://lnkd.in/g4JcNp5u.

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In semiconductor etching, the electrostatic chuck cover ring is an accessory used to protect the surface of the electrostatic chuck. It is usually made of materials with good corrosion resistance. Its main function is to reduce the impact of chemical corrosion produced during the etching process on the chuck, and to prevent substances during the etching process from depositing on the surface of the chuck to maintain the cleanliness and surface quality of the chuck. The characteristics and functions of the electrostatic chuck cover ring include: Chemical inertness: The electrostatic chuck cover ring is usually made of chemically inert materials, which can resist chemical corrosion generated during the etching process and protect the chuck surface from corrosion damage. Prevent substance deposition: The electrostatic chuck covering ring can reduce the deposition of by-products or residues produced during the etching process on the chuck surface, preventing these substances from affecting the fixation and processing quality of the workpiece. Maintain the surface quality of the chuck: The use of the electrostatic chuck cover ring can maintain the smoothness and flatness of the chuck surface, ensuring the stable fixation and processing accuracy of the workpiece during the etching process. Extend the service life of the chuck: The electrostatic chuck cover ring can extend the service life of the chuck, reduce the frequency of maintenance and replacement, and reduce production costs. Easy to clean: Electrostatic chuck cover rings usually have a smooth surface that is easy to clean and maintain, helping to maintain the stability and consistency of the etching process. In general, the electrostatic chuck cover ring plays an important role in protecting and maintaining the chuck during the semiconductor etching process, and can improve the stability of the etching process and product quality. Selecting the appropriate electrostatic chuck cover ring material and optimizing the design can achieve more efficient and stable semiconductor etching processing.

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Question for the additive geeks. Does anyone know what data set is used to create the tensile requirements in ASTM standards for additive metals? ASTM F3001 for example. How many tensile bars from how many prints are required to generate the minimum tensile properties? I have been googling for 20 mins and i figure the LinkedIn hive mind is more efficient!

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Our latest article reveals how metallurgical failure analysis can help enhance the reliability of your operations. Learn about:  ·                 Common failure types  ·                 Essential analysis tools  ·                 Step-by-step investigation process  ·                 Importance of background info  Don't wait for disaster to strike. Get ahead with expert insights: https://ow.ly/clcS50RKmo0  #FailureAnalysis #PreventiveMaintenance #QualityAssurance 

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UFOs and UAPs are not Alien Occam’s razor is a theory that simply states: “usually the simplest explanation is the correct one”. In this case, ionization and world sighting locations point to a man-made source for UAPs and UFOs. #ufo #uap #alien #secret #ion #ions https://lnkd.in/g5mZbKUV

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Those are not 'lights' on outer-hull perimeter of the #CTPcraft filmed here (https://lnkd.in/ehwEnkfR). Those 'lights' are part of the CEMAS™ Arrays which are part of the CTP Propulsion Systems (CTPPS) utilized to control/modulate Gravity via the CTP Energy Cycle™. DISCLAIMER: Providing this footage wasn't faked. "This was faked" lulz Whatever. #newscience #propulsionsystems #propulsion #deeptech #deeptechstartup #spacecapital #newspacecapital #newspace #newspaceeconomy #heiroftesla

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Recently the announcement from ex-NASA engineer, Dr. Charles Buhler ( founder of Exodus Propulsion Technologies, patent application WO2020159603A) about the claimed breakthrough in electrostatic energy and propulsion generated some level of talk in some circles about how this can change everything. Because Dr. Charles has been involved in a couple of NASA programs such as the Hubble, Space Shuttle and the ISS, his claims should be given some investigative study. My views > This is not possible and is flawed. Why >> 1. It is claimed that there is a new force that continues to generate field force even when high voltage source is switched off, that mathematical substitution (of epsilon e squared) based on the empirical data obtained from the team's tests, in both atmospheric, and high vacuum environment proves this is valid. 1.S.1 - This is not valid, because in the atmospheric tests the capacitance function of compounds in air is not factored. In both atmospheric and high vacuum test environment the flow field of the Earth's magnetic force is not factored into the quantum equations that the said team had proposed. 1.S.2 - In the same you-tube presentation and in the patent filing, Dr. Charles acknowledged that the high voltage (currently trial tested at around 5 - 7kV) cannot exceed 70kV to cause charge ionization breakdown. This reinforces the need to empirically test the ionization cycle from 0V right up to the breakdown voltage, which the team did no such proof of test against the claimed breakthrough. 2. It is claimed that in the company's high vacuum tests that the empirical data indicates 4460 uN of continuous thrust against gravity at the specified vacuum chamber pressure at a current draw of 3500 vDC, 228 micro watts. 2.S.1 - Based on this and Dr. Charles representation of quantum mechanics where epsilon e is again substituted alpha, then the continuous thrust will vary at different poles or even continents on Earth, and at different planet orbital band velocity. 2.S.2 - Based on mathematical and empirical data-sets presented, the technical conjecture is unfortunately incorrect because the light constant is still assumed correct, when quantum physicists all around the world are trying to extrapolate the Canary island test data, among a few others. 2.S.3.1R - The fastest method by which the claims can be invalidated, or validated, is the replication of the same tests in different locations on Earth at varying altitudes, which will then show that this claimed "unknown" force will be different at voltages right up to the breakdown value. Having an excellent track record and highly competent credentials, does not equate to having to use yet-to-be-determined science to make claims such as these. #technology #innovation #money https://lnkd.in/gwdm8uSc

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Is cutting and pasting from NASA's CEA code causing your pointing finger to become a workplace injury? Does having to repeat the same thermo-chemical equilibrium calculations over again after a slight propellant change give you nightmares? Want to calculate the optimum mixture ratio for a dual-fuel system, but don't have the time to perform the calculations to minimize NOx? Then give Cequel and pyrho a try. Cequel performs all of CEA's calculations as a dynamic Excel spreadsheet function, allowing for fast parametric studies or supplying problem specific parameters without cutting and pasting. Need Isp, ratio of specific heats, C* or the mass fraction of CO2? Multiple parameters can be returned with one function call. Once your spreadsheet is set up how you want to solve the problem, it can be easily updated for future problems. Pyrho is a python library that provides the same functionality to both python and MatLab scripts. By encoding your analysis according to how you want to solve the problem, when a change happens, just tweak the input parameters to re-perform the calculations. A tri-propellant mixture parameter plot is included as an example. For more information and to request a free 30 day demo, please visit www.praqsys.com.

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Types of Aerospace Tooling Components There are a variety of hand tools, cutting tools, assembly tools, and specialized tools for aerospace companies worldwide. Floating Clamps are an innovative addition to our catalog, designed to provide adjustable clamping that prevents work piece deformation. These clamps are handy for handling ribbed or flanged castings and larger parts, offering additional support points to reduce machining vibrations. The Drop Zero Modular Zero-Point System is another cutting-edge tooling component to streamline manufacturing. It allows the complete machining of a work piece in a single setup, thus reducing setup time and fixturing costs. This system offers full machining access to five sides of a work piece. It can easily integrate into existing modular tooling plates and blocks. Captive Jig Pins are a robust solution for secure, precise alignment, featuring a locking mechanism that positively retains the pin body in a bushing. This type of pin is vital for applications requiring high levels of alignment and positioning accuracy. Captive Locating Screws featuring a hand knob allow for manual tightening and can be used for locating, clamping, or both. They offer an intuitive, human-centric design while maintaining high standards for precision and reliability. Headed Slotted Locator Bushings serve to align two holes without binding, featuring a tight tolerance in one direction and complete perpendicular relief to resist axial loads. These are commonly used in situations requiring precise alignment without sacrificing mechanical strength. ON-SIZE® Bushings are designed for high thermal stability, made from a unique Invar 36 material that minimizes thermal expansion. These bushings are particularly useful in aerospace applications where components are exposed to various temperatures. Our range of aerospace tooling components serves diverse needs within the industry, from the need for precision in alignment and clamping to the requirements for thermal stability and adaptability in machining setups. Each component has its specialized function, designed to meet the rigorous demands of aerospace applications. Courtesy : https://www.carrlane.com

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🤯🔥𝙃𝙊𝙒 𝙋𝙄𝙉𝙀𝘼𝙋𝙋𝙇𝙀 𝙋𝙀𝙀𝙇 𝘾𝘼𝙉 𝙄𝙉𝙎𝙋𝙄𝙍𝙀 𝙉𝙀𝙒 𝘼𝙀���𝙊𝙎𝙋𝘼𝘾𝙀 𝙈𝘼𝙏𝙀𝙍𝙄𝘼𝙇𝙎?🍍🍍 In the quest for innovation, scientists turn to nature for inspiration. Pineapple peel might hold the key to new materials. Here's how: ✅️ Bio-Inspired Innovation: The structure of pineapple peel offers resistance and flexibility that can inspire new composite materials. ✅️ Versatile Applications: These structures could be applied in aircraft components, satellites, and spacesuits, enhancing their performance and sustainability. ✅️ Sustainability: Using principles from nature to design materials can reduce the environmental impact of the aerospace industry. ✅️ Energy Efficiency: Materials inspired by pineapple peel could provide better thermal insulation and resistance, optimizing energy use in space. Pineapple peel is not just waste; it's a source of inspiration for the next generation of innovative and sustainable aerospace materials. ------ 📣Remember to follow me Luis L. if you want more content about #Aviation #eVTOL #Drones #Airports #Innovation or #Tech 👉Follow Negocio Aeroespacial to learn everything about the aerospace and defense sector. 🔥 Re-share and comment, is the only way for me to have feedback from you 📨Contact me if you need any support, I will love to help you. 👏👏👏 ------ 📲Join our WhatsApp channel: https://lnkd.in/d-wHG2D7 🛰Join our telegram channel: https://lnkd.in/d4GuYeBG

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“Excited to share that our review article on Ceramic Matrix Composites (CMCs) has been published! 📚🔬 CMCs are advanced materials with remarkable mechanical and thermal properties, making them ideal for aerospace, energy, and biomedical applications. Check out the comprehensive overview and recent advancements in this field. 🚀🔥 #MaterialsScience #Research #CMCs”

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Composites and shimming have been in the news a lot of late. Here is what I think you should know: 1. Manufacturing methods for composites require greater tolerances than metals 2. Composites are not ductile like metals and shouldn’t be bent into place 3. Composites perform better under fatigue than metals 4. Shims are used to close the gaps created by tolerance stacking when joining large structures 5. Airplanes are designed with large safety factors 6. Non-conforming to a manufacturing specification is not acceptable, but doesn’t necessarily mean that the system will fail under normal operating conditions I am sure there is more to discuss. What else can you add?

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