Questions related to Manufacturing
I would like to ask for your help.
As part of my PhD diploma and thesis I conduct a research and would like to invite you to take part in a short questionnaire survey on topics related to the Operational Excellence of manufacturing companies and its relation to concept of Sustainable Development.
The survey is completely anonymous I would be very grateful for your responses. https://forms.gle/yjVsvW2k21rjQHVY6
Thank you for your support and your time,
#operationalexcellence #manufacturing #sustainabledevelopment #management #research #sustainabledevelopmentgoals #sixsigma #leanmanagement #Industry4.0 #IoT #Agile #TPM #TQM #LeanSixSigma
CRCA comes in different grades, O, D, DD, EDD etc.
During sheet metal forming certain sheet thickness tolerances to be maintained.
Is their any relationship, lower sheet hardness have wider tolerances.
Sheet manufacturing perspective is expected.
Thanks and Regards
The design specifications of any device are subject to many factors, the most important cost of design versus quality of performance.
The world’s experience (of developed countries) and economic literature in structural transformation witness that productivity growth in the manufacturing sector is steadily ahead of that in the service sector. However, current empirical studies in many countries including India and my country, Ethiopia, show the other way round: the service sector is growing faster than the manufacturing.
How can one interpret such an event in terms of economic transformation? Shall we expect services-driven economic transformations? What is missing and needs to be fixed, otherwise, and how?
As from literature it was seen that aluminium alloy Al5083 can only be strengthened by work hardening and micro-alloying. Similarly, I want to know what are the only possible processes through which AZ91 can be strengthened.
Moreover, If you suggest the process with the any limitations it would add supplementary to my work.
I am looking for a good source that can show me the properties of different manufacturing errors especially size of them (width, length, hight ) on surace of industrial products; errors like holes, chatter, scratch, gouge and so on.
I appreciate any help in advance
Have anybody got involved in research with ERP (Enterprise Resources Planning) in Construction Project Management that useful in:
A) oil and gas fabrication
B) Marine Port
D) Housing development
1) How about performance using ERP especially in Material Management Supply Chain?
2) Can ERP Integrate with e-commerce?
I need to simulate the laser path with different patterns for metal additive manufacturing along with deposition of materials in ANSYS. Is there a way to do it?
Hi all :)
I hope you are all good and happy :)
I am facing some problems when trying to build an arena software model using common template for the following airline terminal assignment.
I made the following hand-written model for task 1 (see model 2 task 1) and implemented it in arena software, but I faced the following problems,
a) I cannot make passengers move through five different agents, since from the main entrance block, I can route to only one agent, so when I run my model all passengers move only to the selected agent. Please see main entrance block.jpg. Also, when I chose Seq or Expression options I receive an error. Connect option does not work either.
b)Every time I run the system while passengers only move through one agent, I receive the following run time error at count number 45, please check error.jpg. Then when I press run again it runs and stops at count number 138.
I even used "AdvServer" & "Enter" blocks but still faced problem (a).
Finally, for task 2, I made the following hand-written model but was hoping you can confirm whether it is right or wrong. Please see model 2 task 2.jpg.
Thank you so much :) Your help is greatly appreciated since I am stuck and cannot make any progress beyond this point.
I am working on building a process layout to find bottlenecks within the facility. However, throughout building my simulation I need to make the process labeled "Stack Rtator Lams" contingent on having a part from "Cut Keyway 2.1" and "Machine 1.1". I am confused on how to continue and hoping for some answers or insight?
Right now I just have connections running from Cut Keyway 2.1 and Machine 1.1 to Stack Rtator Lams, but Stack Rtator Lams is running when it has a part from either cut keyway or machine and I need it to run when it has both / be idle when it is waiting for one of the parts. Thank you in advanced.
I also have attached a photo and my file if that helps anyone.
I am new to ARENA simulation and I have the following problem. I will describe the manufacturing system that I want to model.
I have the following manufacturing system (see attachment 1)
There are two different queues, in queue 1 there is only order type 1, and in queue 2 there is only order type 2. Depending on the type of order, either order type 1 or order type 2 has priority
- Order type 1 is processed first/has priority at machine 1 (process1) if machine 2 (process2) is off
- Order type 2 is processed first/has priority at machine 1 (process1) if machine 2 (process2) is on
- If machine 2 is off and there are no orders of type 1 in the queue in front of machine 1 then order type 2 will be processed at machine 1
After order type 1 is processed it is disposed of, and order type 2 goes to machine 2 (process2)
But there is also another condition. Machine 2 is only turned on when there are 3 orders in the queue in front of it. If there are less than 3 orders in the queue in front of it, machine 2 will be turned off.
- Machine 2 can only be turned on when there are 3 orders in front of it. So It has to wait until machine 1 is done processing all orders of type 1 before it can start processing orders of type 2.
- if machine 2 is off and there are no orders of type 1 and machine 1 is processing order of type 2 and suddenly an order of type 1 arrives. Machine 1 will then finish processing the order of type 2 and will start processing the newly arrived order type 1. Once this order is processed it will start processing orders of type 2 again. This goes on until there are 3 orders of type 2 in front of machine 2 and it is turned on. Once machine 2 is turned on, machine 1 will give priority to order type 2 until machine 2 is turned off again.
so my question is how do I model this manufacturing system. I have made kind of a start (see attachment 2) but I'm to ARENA and just can't seem to figure it out.
Any help would be appreciated.
Thanks in advance.
Will it occurs during the moulding or compacting process, profile grinding section, handling of pressed parts before sintering process and during sintering process. Also any method or process to eliminate it ?
Most of the references I found were on the economic productivity in agriculture but very limited application in manufacturing sector. I would appreciate if anyone could share the references on this.
Thank you in advance.
While feeling the shared pain of costly and slow PCB Manufacturing process. Which also makes the hardware creativity and education much costly and slow. I was trying to figure out how can we decrease the cost of PCB manufacturing, get it made quickly and still maintain the level of quality we currently get. I came across the concept of using UV laser for Board cutting boards and drilling board plus using Masked SLA type of process for UV expose.
- To me, this seems like a revolutionary setup.
- You can make every board different, which makes enables mass customization
- Very less wear outs as there are no drill bits to die
- Automation can be a much higher decreasing need for costly labour and faster lead time
- Fewer machines and setup costs which makes the footprint of the plant smaller
- Above 2 points can make PCB Manufacturing feasible outside china as well
- Maybe we can mitigate the setup cost of PCB and bring down the cost of proto PCBs to the cost of PCB manufactured at scale
All these seem that for at least 2-layer rigid or flexible PCB, a lot of initial costs can be mitigated and prototype PCB manufacturing cost can be decreased.
So what am I missing? What are the technical or commercial challenges you see in making with this way of manufacturing a PCB?
As we know Industry 4.0 is using many new technology including robotics, but are the Industry 4.0 implementation is always necessary using automation? Because automation is heavily discussed in Industry 3.0, especially computerization automation. Or maybe we can ask : using automation are Industry 4.0 or Industry 3.0?
- I'm currently working on a project designing a Polycarbonate manufacturing plant. I found two main processes for the production such as phosgene method and transesterification method. But I couldn't find any Process Flow Diagrams related to the process. This transesterification method was developed by Asahi Kasei Corp. Japan. Anyone has an idea about the better process to produce Polycarbonate and Unit operations involved with it?
I'm in the process of starting my masters thesis, and I would like to research on manufacturing process Mining area(like process flow / production line). I need good topics for my research . Can you suggest some topics? Can you suggest some advanced topics?
What according to you should be researched/accessed with respect to WC based solid lubricant tools? What is your view with respect to future research in this area? (For e.g. Tribological study etc..)
Thanks in advance..
Based on my experience, to start a lean culture in a leanness organization it all starts with the senior management and leadership team engagement. It is not something to be delegated to human resources area, and it is not only about outsourcing consultants. However, when the implementation phase is complete, the kick-off phase begins. This said, in your understanding what are the top lean culture implementation challenges to be addressed by a leanness enterprise?
I'm working on methodology of transforming existing organization for manufacturing companies. Could you please guide me on how to approach the following questions:
1. How to split task between operational routines (repetitive tasks, business as usual) and dynamic routines (transformations, NPD, innovation etc.) for different functions (sales, manufacturing, HR, etc.)?
2. How to calculate optimal number of people involved into each type of activities in different functions (e.g. dynamic routines in sales)?
3. How to approach motivation for different combinations of task types and functions? What KPI or other ways of performance control should be used for each of these combinations?
Thank in advance!
Whether you're making stuff physically or virtually, you ARE making stuff. Don't take my word for it, see what the U.S. Department of Labor has decreed: https://dasisolutions.com/appreticeship-program
Please help me to understand which failure on a production line should be prioritized when comparing failure 1 which occurred 5 times in the month and consumed 10 hours (total) versus failure 2 which occurred 10 times but consumed 5 hours (total). What index (or calculation) can I use to know which failure to prioritize for improvement efforts?
Hello, guys. I am currently researching Industry 4.0 in the automotive industry, and I was wondering which websites and or resources I can use to get more answers? I have kept the survey short (about three to minutes).
Additionally, if any of you work within the automotive sector, whether manufacturing, management, marketing, supply chain, or even sales, etc. Your responses will be highly valuable. Thank you.
If you wish to complete it, this is the link below:
Tunas Manja Group operates the retail stores known as TMG Mart that provides and sells various products which are mainly the groceries and houseware goods. However, the mart is facing problems in finding the best solution for sorting process which caused the customers having a hard time finding their desired items in the mart.
Mechanical contact stylus techniques are the traditional method of measuring the internal diameter (ID) of shafts. Bore gauge is a good example for this method. Now I am trying to use non-contact method and after researching about different non-contact techniques and the available equipment, I found confocal chromatic sensor very accurate (as low as 0.5-2 microns). I learned how to use it to find some GD&T features like run-out but I don't know how to find the bore size (internal diameter). The case study is explained below. Any suggestion is highly appreciated.
Geometry: A cylindrical shaft with internal diameter of 0.926" and length of 40"
Question: To find the size of ID by using confocal chromatic sensor.
I am a novice researcher in the field of clustering algorithms. DBSCAN was the one which its mathematical background draw my attention to itself but unfortunately, except biological- and medical-oriented fields, I couldn't imagine any other use cases for the algorithm. I would appreciate if anyone introduce me some useful resources which DBSCAN is used in fields except medical or biological ones. According to my bachelor degree (Industrial Engineering), I'm particularly looking for industrial and manufacturing instances.
The new generation of technologies such as Additive Manufacturing (AM) and Cloud based manufacturing can potentially affect the manufacturing location decision resulting in strategies such as offshoring, reshoring, near-shoring, outsourcing, in-sourcing etc. In which areas does Industry 4.0 impact location decisions?
Consider raw material as Al scrap (Si-6%, Mg-1.5%, Zn-1.1%, rest-Al and minor impurities).
I need details of how Si is being added for alloy preparation?
I am looking to obtain a copy of the CD-ROM and an activation key that is part of this upgrade kit. We have a MyCycler at our college that has not been upgraded with the temperature gradient function. This machine was discontinued by Bio-Rad in 2012, and the upgrade kit is no longer available as result from the manufacturer.
Please let me know if you can help with a source.
- let say if there are X1, X2, X3, X4,....................Xn factors and each factors depends on i (i=1,2,3,4...........) factors and N=25 factors of manufacturing performance.
if let us say
- X1= f (X2, X3, X4, X5............Xn) (i=n)
- X2= f(X1, X3, X4, X5............Xn) (i=n)
- X3 = f(X1, X2, X5, X6............Xn) (i=14)
- and so on.
- I want to know the level of dependence of each factor on other factor. eg what is the dependence level of factor X1 is on factor X2 and how much is the level of dependence of X2 on X1. Level of dependence of factor X1 to X2 and X2 to X1 are different. how such a model can be analyzed using statistical methods. please refer to the figure for further clarity.
- Please suggest some statistical/Mathematical Method or technique. this problem is related with the factors influencing the manufacturing performance but these factors are also influenced by each other to a large extent. so basically if one parameter changes it automatically affects all other performance parameter.
I'm curious if anyone knows how spin columns are made. I can't seem to find any technical articles or instructions so I'm at a loss. Additionally, I'm interested in knowing if anyone has any idea about the types of treatments (if any) a silica spin column would receive before it's shipped/used as well as if there are different compositions of columns. I know there are ones for RNA versus DNA and plant vs. blood or bacteria but are there differences among these types? Is it even possible for a company to optimize their 'silica spin columns' in their kits specifically for the kit's reagents? Please advise or share any related information you have. I'll even take anecdotes.
We know that the manufacture of electronic components has been reducing their costs in recent years. But what are the main challenges to facilitate the reduction of component costs?
For the application of Industry 4.0 and hence making the machine self aware, what optimization techniques could be used for a machining process? (Preferably please explain a mathematical model regarding the same or a case study)
For some research on super(sub)critcal fluid extractions, I am examining SFE CO2 systems. On websites of manufacturers of these plants they state that the CO2 used in extraction can either be recirculated / recovered or vented into the atmosphere.
Now I am wondering how this is done in practice, do companies using this technology recover their ''polluted'' CO2 after a number of extractions. Or do they simply just vent it into the atmosphere and use new CO2.
Thanks in advance.
Gerrit van Beek
I need some information about the production process and material properties of seismic base isolators .e.g. LRBs (lead rubber bearings). I'd really appreciate it if you could share this kind of documents if you have any.
Surfboards consists of a foam (lightweight) core and a fiberglass (stiffness) skin. Wet hand-layup is the most commonly used manufacturing method, several layers of fibre glass fabric are laid up on the foam core and laminated using epoxy resin.
My question is about the fiberglass layup sequence for the skin. A surfboard is mainly subjected to compressive stresses (primary one being weight of the surfer). The compressive strength comes from the epoxy resin and the foam core, whereas the fiberglass adds stiffness to the skin.
A typical layup sequence used is 2-3 layers of woven fiber glass fabric (plain weave 6 oz each). My question is if the requirement is stiffness, wouldn’t Uni direction (UD) provide higher stiffness (2 plies of UD (0,90) vs one woven ply )? UD is non crimp hence stiffer and it will also have less resin rich pockets (more resin = brittle). Almost every surfboard I have seen uses woven plies, there must be a reason for it..?
Secondly, lit. reports "Placing a 45 degree ply on the surface of a laminate increases its buckling resistance". Now fibres mainly carry tensile loads whereas compressive loads are carried by the matrix, so I dont quite understand why specifically a 45 degree ply can help in preventing buckling (which is a result of compressive load).
I am in the beginning stages of researching manufacturing companies in the U. S. who have implemented servitization initiatives in the last 10-20 years. Does anyone have an idea where or how I might begin to compile a list of companies that have done this>
I am looking for manufacturers that could produce customized temperature controlled enclosure ranging from +15 degC to +25 degC, with a precision lower than +/- 0.05 degC.
This would fit on a bench to test samples up to 2m long.
So far I have listed only two companies, and I am keen on extending the list. Thanks for your help.
How can i do research on all three combined aspects of additive manufacturing, sustainability and industrial 4.0 from technology point of view. Materials not included.
Let us face it. Society is walking away from higher education. And they use us in the process of killing serious academics by evaluating us to death. Many a mediocre faculty member is eager to manufacture the rope. See the beautiful article by Professor William Weber (attached)
I'm looking for a small quantity of Ti3C2 MXene for some preliminary experiments. I am unable to manufacture it myself because our tube furnace doesn't reach a high enough temperature. Is there someone willing to supply a small amount (20-30g) for some preliminary experiments? I have access to a budget to pay for manufacture and shipping. Thanks in advance.
In a new project I'm about to start in the garment design industry, I will need to extract some surfaces from the scanned body of a person in order to customize parametrized pieces of clothing based on these surface measurements.
I already used Rhino on another manufacturing project. All its algorithms can be called from Python scripts and reusing its visualization, object creation, geometric algorithms was a big time saver. The problems I encountered were the following:
- Non standard Python 2.7 version (Iron Python) not compatible with lots of recent libraries (difficult to use NumPy, SciPy, etc).
- Non robust mesh algorithms (intersections, boolean operations, etc.)
I would like to get advices from people using other CAD like CATIA, SolidWorks, Pro-E, etc about the ease with which one can extend and customize these software to serve as "frameworks" for custom applications. Which language can be used? Can it call standard C/C++ code or Python code? Are they offering advanced and robust algorithms on triangular meshes?
Dear colleagues, after struggling for a long period to find the right answer to this question, I will try this time through online social media. I am trying to find a way to calculate something that seems to be obvious, but that is not: how to have a reliable measure of vertical integration in a sector or a corporation? By vertical integration I mean: what is internalized/produced vs outsourced/bought by dominant OEMs in a given sector? E.g. How much Ford Motors is producing in-house vs buying parts to suppliers in the market? What is the trend in the past decades? I am studying the auto sector, but I think it could be also relevant for other sectors in manufacturing. Is there any data to capture this degree of vertical integration (e.g. in-house value added)?
Thanks in advance,
I am searching for commercial plants manufacturing Mono-potassium phosphate(MKP) of which raw material is Potassium chloride (KCl).
Please suggest the similar grounds for comparing Manufacturing sector and Construction sector in terms of safety management.
There is a lot of research about field effect transistors as biological sensors. However, I cannot find a single commercial supplier. I am looking for naked chip (with graphene, SiNW, CNTs...) that I could functionalize with my molecules of interest, in order to test my upstream biochemical strategy independently of the electronic readout. One problem at a time.
Would anyone know where to find chips with a reasonably consistent quality? Sigma has some graphene FETs, but the manufacturer is unresponsive and I really need technical expertise on the product I'll be using.
It is a conundrum. Why should meylin be produced by oligodendrocytes or schwwan calls rather than neurons themselves. It seems that Myelin is indispensible to neuronal function and should be the part of neurons (produced by neurons themselves) rather than an manufacture of other cell moieties?
Any comments out there?
One manufacturer gives values closer to 10 µm/m, which is normal for martensitic stainless steel.
Could you suggest some applications where Shape Memory Alloys (SMAs) have utilized the FGM concept in its manufacturing.
For my master theses I'm doing research on high-growth firms. I have a sample of approximately 1100 firms from 6 countries. These companies are assigned to 1 of the 19 industries they operate in (services, manufacturing, retail etc.).
Now I want to test the hypotheses: "that high-growth firms are overrepresented in the service industry" (so more firms in the service sector compared to other industries)
Firstly, I want to do it for the whole sample and afterwards for every country seperatly.
Does somebody know how to test this in SPSS?
Thanks in advance
Given the processing times for parts to be manufactured in different machines in a flow shop line, depending on the sequence in which the parts are manufactured, the makespan (i.e. the total time that elapses from the beginning to the end) can be reduced. The lower bound is the minimum value of the makespan.
I need a one-fits-all antibody diluent for different panels of anitbodies. Trying to reduce overhead cost of running the experiment.
Dear colleagues, here are some points that I would like some discussion and, if possible, some answer:
I am having difficulty achieving a mixture with ideal workability in the fabrication of cement boards using the hastchek method.
a. Machining after tampering
b. Tampering before machining
This disc rotor material is Mild steel.
It is to be used in the brake assembly of a vehicle.
As you know EVA materials using for capsulation proces in the PV Solar Industry. I want to clean the melted EVA without damaging the coating from the antirefle-covered glass surface. Is there anyone could give me suggestion for solvent type in this process?
I recently am starting to do some research in neuroblastoma. In my study, I need to do some in vitro assay and started to culture some cell lines. Currently I have SK-N-BE(2) and SK-N-AS cell lines. SK-N-BE grows just fine but I am struggling with SK-N-AS. I cultured them under the same condition using high glucose DMEM manufactured by genedirex with 10% FBS. Can you share your experience with this cell line? thank you very much.
I want to do a double digestion with EcoRI and NotI.
The EcoRI is from ThermoScientific. The recommended buffers are Orange buffer and EcoRI buffer.
The NotI is from NEB. The recommended buffer is Buffer 3.1
According to Thermo buffer compatibility catalogue, both the enzymes should be working fine in buffer Orange.
Can this digestion be carried out with both the enzymes in Orange buffer? Or should I go for a sequential digestion?