शैडोइंग अभ्यास: DFM And DFA Explained - वीडियो के साथ अंग्रेजी बोलना सीखें

Hello everybody, this is Runa Andjeran and I'm joined by Andrew Amrinovin

and we are going to cover the topic of design for manufacturing

and design for assembly and what engineers need to know when designing a new product.

Hi Andrew.

So what does it mean design for manufacturing?

Hello Renaud, good to be here.

Thank you for inviting me.

Well design for manufacturing is one of the most important design basically elements when it comes to designers.

that is where you want to make sure

that design is manufacturable easy to manufacture

and you want to implement a system of design so

that there's only one way for the user at the end

end user to be able to use the product during the manufacturing manufacturing,

of course, you want to make sure that the assembly of the

parts are simplified in and so that there is basically less of a mistake possible

or they call it also mistake proofing the assembly.

So that's called design for assembly during the manufacturing.

Right.

And so you also covered design for assembly.

Design for manufacturing, usually people say that when it comes to the fabrication of parts and design for assemblies, how to put it together.

But really the principles, the approach is pretty similar.

So let's cover a few things that designers need to keep in mind.

And the first one is that when you design custom parts that are not standard off the shelf, they're not available right there,

out there in the market, they actually can be fabricated with the process that you have in mind for mass production.

Does that make sense?

Yeah, it does.

And I think there are a lot of ways to fabricate parts.

There are 3D printing nowadays and there are injection molding.

There are many ways to actually fabricate parts, but at the end of the day,

you wanna simplify the design so that they're easy to be manufactured and easy to be fabricated.

Right, at the intended volume, right?

So you mentioned 3D printing versus plastic injection molding.

Correct.

If you wanna make 50 pieces, maybe 3D printing is gonna be fine, but if mass production is gonna be batches of 10,000,

you get to think of injection molding right absolutely

the the second one is a related point is whenever you can do not custom design

some parts whenever you can if you can find standard off the shelf products on the market

use them

and simplify your product remove the risks remove the extra cost remove the the the time to make the molds

and so on and so forth do you have an example

or would you want to go deeper into this yeah that's correct now nowadays a lot of the components

and so-called after shift parts are pretty much approved in terms of technology,

in terms of production, and they are very much improved compared to 10, 20 years ago in terms of reliability and quality.

So a lot of these, and you have a lot of different kinds of parts that are standardized nowadays.

You have actives, passives, you know, for example, caps, resistors, inductors, as well as ICs, semiconductors.

These are all a lot of these, including some connectors that are already off the shelf approved parts.

And there are plenty of vendors out there.

And a lot of times these parts are readily available

and in stock so there's no need to redesign

or reinvent the wheel per se

and you just need to contact the supplier of your choice

and get some samples and try it in your design

and then if it works you can actually get a good deal cheap readily available parts right away right so um obviously

if you need a very nice, let's say enclosure with your own design, you're not going to find that out in the market, but especially for internal parts as much as possible.

Correct.

Try to go standard of the shelf, we'll save you some time, some money and reduce the risk actually quite a bit.

Right.

Exactly.

The next point, when you design the product as early as possible, you need to think, okay,

how is this going to be made with what production process and what's the material going to be?

And some people come to us and they say well this is probably going to be some plastic

but aluminum might be okay also and so on and they really haven't thought through this

so the design is far far far from complete.

Does that make sense?

Yes, it does.

I think that this is where collaboration with different functions within the team is extremely important.

I think designers need to be in touch with the ID Department Industrial Design team, as well as the program managers, customer requirements requirements

and really at the end of the day they need to

understand how this product is going to be used at the end

so needs to be designed with the processes and materials

that are in hand in mind so

that everything will move smoothly absolutely the next point is think also of the color

and finish and I'm talking to mechanical designers mostly here when you do your your 2D drawings

this should be mentioned on the drawing if you don't put

that down and

if you don't already think about it well this is also related to the to the process

and the material that you need to pick.

If you pick a process that's maybe that leads to very porous parts like die casting and you want to anodize it,

you will probably probably run into issues, right?

This is just an example.

Have you run into that?

Yeah, I think that's a great point because a lot of times younger MEs,

mechanical engineers, forget about the color or finish until towards the end

and what happens is that different materials absorb and all reflect color

and the finish differently

and you end up having for example let's say you have two different kind of materials and you're supposed to have

one color for both and then you end up having two tones two different colors

that id will reject then you'll have delays in product delivery to market

so it's very important right from the beginning uh establish a well-known approved vendor for material and and color and paint

so that you can actually get some color chips

and materials samples right up front

so you can actually get it approved for the project as

soon as possible yeah that's a great point yes reduces risk a lot.

Exactly.

And the last one and you touched on a little bit when you introduced the topic assembly.

You have production operators, they're not university graduates.

They're not going to think deeply about how things have to be put together.

It's got to be, you know,

broken down to the right degree at least and it's got to be relatively obvious how to put the parts together, right?

100

Yeah, exactly.

101

Assembly is one of the most important parts of the production.

102

Many designers forget the fact that actually they're going to be operators and manual assembly on some of these parts,

103

parts which can greatly impact the reliability and quality

104

and testing of these assembled units or modules

105

so it is very important for designers actually be in the assembly line

106

and actually observe how these units are being assembled

107

and they will have a better idea of how to design it next time yeah

108

if possible engineers should put prototypes together themselves they will have an idea

109

so exactly yes and it's it's also true for packing um

110

and the same thing so thanks a lot andrew

111

that was a good uh good overview of this topic

112

and let's go into the next one in the next video thank you great thanks for having me thank you

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इस पाठ की शब्दावली और बोलने के सुझाव

इस वीडियो में शैडोइंग के लिए 112 वाक्य और 1329 शब्द हैं। बोला गया हिस्सा 9:35 लंबा है। वक्ता लगभग 139 शब्द प्रति मिनट की स्थिर गति से बोलता है, जो शैडोइंग के लिए आरामदायक है। 88% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं, इसलिए शब्दावली आसान है।

इस वीडियो की मुख्य शब्दावली

वीडियो के 15 सीखने लायक शब्द, उच्चारण और अर्थ के साथ:

शब्द	उच्चारण	अर्थ
designer संज्ञा	/dɪˈzaɪnɚ/	डिज़ाइनर
approve क्रिया	/əˈpɹuːv/	अनुमोदन करना
shelf संज्ञा	/ʃɛlf/	तख़्ता
mold संज्ञा	/moʊld/	फफूंदी
topic संज्ञा	/ˈtɑpɪk/	प्रसंग, विषय
nowadays क्रिया विशेषण	/ˈnaʊ.ə.deɪz/	आज कल
injection संज्ञा	/ɪnˈd͡ʒɛk.ʃən/	इंजेक्शन
custom संज्ञा	/ˈkʌstəm/	प्रथा, रीति
operator संज्ञा	/ˈɑpəˌɹeɪtɚ/	संचालक
requirement संज्ञा	/ɹɪˈkwaɪɹmənt/	आवश्यकता, अनिवार्यता
element संज्ञा	/ˈɛləmənt/	तत्त्व
establish क्रिया	/ɪˈstæb.lɪʃ/	स्थापना
compare क्रिया	/kəmˈpɛɚ/	तौलना
delay संज्ञा	/dɪˈleɪ̯/	देर, विलंब
reflect क्रिया	/ɹɪˈflɛkt/	प्रतिबिंबित करना

ध्यान देने योग्य उच्चारण

वक्ता 18 बार संक्षिप्त रूपों का प्रयोग करता है, जैसे they're, don't, gonna। इन्हें वैसे ही छोटा बोलें जैसा आप सुनते हैं।

“sh” और “zh” की ध्वनियाँ: shelf /ʃɛlf/, injection /ɪnˈd͡ʒɛk.ʃən/, establish /ɪˈstæb.lɪʃ/, collaboration /kəˌlæbəˈɹeɪʃən/, enclosure /ɛnˈkloʊʒəɹ/
लंबे शब्द — बलाघात सही रखें: mechanical /məˈkænəkəl/, operator /ˈɑpəˌɹeɪtɚ/, collaboration /kəˌlæbəˈɹeɪʃən/, differently /ˈdɪf.ə.ɹənt.li/, aluminum /əˈlu.mɪ.nəm/

इस वीडियो से अभ्यास कैसे करें

पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
सामान्य गति पर एक-एक वाक्य की शैडोइंग करें और हर वाक्य तब तक दोहराएँ जब तक आपकी लय वक्ता से न मिल जाए।
अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर designer, approve, shelf जैसे शब्दों पर ध्यान दें।

शैडोइंग तकनीक क्या है?

शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।

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इस वीडियो से अभ्यास कैसे करें

शैडोइंग तकनीक क्या है?