The American Steel Worker: A Twenty-five Years' Experience in the Selection, Annealing, Working, Hardening and Tempering of Various Kinds and Grades of SteelDerry-Collard Company, 1906 - 333 стор. |
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Сторінка 8
... allows them to do their part of the work . If a milling machine were bought and set up in a shop , and it was found that ... allow . While manufacturers in general recognize the im- Waste through improper handling . portance of having ...
... allows them to do their part of the work . If a milling machine were bought and set up in a shop , and it was found that ... allow . While manufacturers in general recognize the im- Waste through improper handling . portance of having ...
Сторінка 12
... allows the work a to drop from the gauge , thus proving that but a very small amount of heat is needed to expand the steel sufficiently so the contact points no longer touch the piece between them . Now , if a few degrees of heat will ...
... allows the work a to drop from the gauge , thus proving that but a very small amount of heat is needed to expand the steel sufficiently so the contact points no longer touch the piece between them . Now , if a few degrees of heat will ...
Сторінка 16
... allowed to exist for that length of time and occupy a position as blacksmith , or hardener , that he must necessarily know it all . To him steel is steel ; he treats it all alike . If there is some particular steel good - natured enough ...
... allowed to exist for that length of time and occupy a position as blacksmith , or hardener , that he must necessarily know it all . To him steel is steel ; he treats it all alike . If there is some particular steel good - natured enough ...
Сторінка 24
... allowed to rough out the piece . As a consequence , the outside surface is removed , and all traces of the eccentric cen- tering are eliminated . The piece is made into a reamer or some other tool , and when hardened it is soft on one ...
... allowed to rough out the piece . As a consequence , the outside surface is removed , and all traces of the eccentric cen- tering are eliminated . The piece is made into a reamer or some other tool , and when hardened it is soft on one ...
Сторінка 27
... shapes . The more common shapes are round , square , flat and octagon . If steel is to be cut from the bar and ma- chined to shape , it is advisable to purchase bars which The choice of proper steel . allow of machining to 27.
... shapes . The more common shapes are round , square , flat and octagon . If steel is to be cut from the bar and ma- chined to shape , it is advisable to purchase bars which The choice of proper steel . allow of machining to 27.
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allow annealing best results bottom brittle cast iron cent charcoal charred leather cold considered advisable cool counterbores crucible steel containing cutting tools cyanide Derry Collard Derry Collard Co dipped draw the temper drills excellent results Figure fire forging furnace gauges give grain grinding hammer hard hardened steel hardening box high carbon steel high speed steels hole hotter inch kettle lathe tool lead linseed oil machinery steel mandrels manner method milling cutters milling machine cutters mixture necessary to harden open hearth steel ordinary pack hardening packing material percentage of carbon phosphorus piece of steel pipe placed plate plunged portion possible proper punch punch press quenched raw bone reamer red heat refining heat removed screw screw threading shape shown in Fig similar tools soft spring surface tank taps teeth temper color temperature tion tongs tool steel uniform heat wire writer