Interpreting Feeds and Speeds From Machinist Handbook

outubro 05, 2022 Postar um comentário

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· 314 ratings · 16 reviews

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Sep 27, 2012 John Gulso rated it it was amazing

Bring the apocalypse. With a Machinery's Handbook I can rebuild the world. Bring the apocalypse. With a Machinery's Handbook I can rebuild the world. ...more

I have read a 7th edition as well as a 23rd edition. Amazing to see the transition in time.

Takes the gueswork out of most machining operations.

I use this book EVERY day, it is sitting open on my desk right now as I type this; it is invaluable, and I find it so amusing to see it shelved on Goodreads, since it's not really the kind of book you sit down and read. (And yes I have the 25th edition, I made sure to shelve the one I own.) I use this book EVERY day, it is sitting open on my desk right now as I type this; it is invaluable, and I find it so amusing to see it shelved on Goodreads, since it's not really the kind of book you sit down and read. (And yes I have the 25th edition, I made sure to shelve the one I own.) ...more

An indispensable book for anyone that does anything mechanical.

Nov 12, 2020 Daniel Hiland rated it it was amazing

At 2,547 pages, this is the machinists Bible...

Though I worked for twenty years as a technical writer, I'll be the first to admit that I was never mechanically or technically inclined. I can write the best set of instructions you've ever seen, but watch me try to work on something mechanical, and you'll see tools and expletives flying, the first time I run into a seemingly unsolvable problem. Sometimes I'll, stick with the challenge until I solve the problem, but it takes so long.

So, why talk ab

At 2,547 pages, this is the machinists Bible...

So, why talk about the Machinery's Handbook? After all, the book states right there on the title page that it's "a reference book for the mechanical engineer, engineer, designer, manufacturing engineer, draftsman, toolmaker and machinist-" none of which I've ever aspired to be or had the first clue about.

Maybe my interest is due to working with engineers for so long; I grew to admire their intelligence and the way they were able to apply it in so many different situations. With some of them, the knowledge was acquired through years of schooling and experience. But for a few, the ability to problem-solve their way through a tough spot seemed instinctual. And while I was able to simplify their instructions so the user of a machine one of them designed was able to actually operate it, I nevertheless stood in awe of the abilities engineers and machinists possessed.

After seeing the results of their designs and fixes, I wondered where they went to for assistance. So it was that I started cracking open the MH, every so often. Curiosity played a role. My love of huge books was another. But more than that was the sense that I was looking into another world- one I could never function within, but still fascinating to watch.

As for the book, the edition I own measures 5″ x 7," and since it's over 2,500 pages long, it's 2 1/2″ thick, giving it a box-like look. The first edition came out in 1914, and the tome's continued use through the decades gives some credence to the claim that it is indeed "The Bible of the Mechanical Industries." So much information is included in the chubby little book that a 249-page companion guide exists, filled with examples, solutions and test questions.

Want to learn about springs? There are fifty pages devoted to them. How about threads and threading? 230 pages. There are fifty-three pages on bearings, forty pages on heat treatment of steel, and forty-six pages on allowances and tolerances.

Of course, a book crammed with so much information would be unreadable were it not for the profuse amount of tables, charts, diagrams and illustrations. But even with the visual aids, there are certain topics that make my eyes glaze over, as interesting as they initially appear to be.

Amidst the chapter on formulas and geometry, there's a section on calculation of circles within a circle. Say you're trying to figure out how many burritos you could fit into a large tube. Assuming that you can't just squish them in there- for that would be cheating, not to mention messy as hell- three factors have to be taken into consideration: the arrangement of the center or core burrito; diameter of enclosing burrito when outer layer of burritos is complete; diameter of enclosing burrito when outer layer is not complete. This is followed by "Table 1: Number of burritos contained in complete layers of burritos and diameter of enclosing burrito." Then follows an uncomfortably large number of ugly-looking equations and another baffling table or two. And if that isn't enough of a challenge, the next section shows how to fit burritos into a rectangle.

Since I'm in too deep to explain anything else about this amazing, confounding book, I'll quit while I'm behind, and place the MH and its companion volume on the shelf, right next to the Stedman's Medical Dictionary and an Engineering Drawing and Design book I've never used.

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