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 7
... strain , in order that heavier cuts and faster feeds might be taken to reduce the cost of production . : If a tool is doing the maximum amount of work possible for it to do , when it is used in a light machine , it would be folly to ...
... strain , in order that heavier cuts and faster feeds might be taken to reduce the cost of production . : If a tool is doing the maximum amount of work possible for it to do , when it is used in a light machine , it would be folly to ...
Сторінка 60
... strains are set up in the piece , and it is very liable to crack when hardened . This also applies to a piece of any shape . While it is extremely necessary that the operator observe the greatest possible care in regard to the quantity ...
... strains are set up in the piece , and it is very liable to crack when hardened . This also applies to a piece of any shape . While it is extremely necessary that the operator observe the greatest possible care in regard to the quantity ...
Сторінка 64
... of steel , and assures the reader that a piece of steel hardened at the refining heat requires a much greater force to break it than one heated to a full red . Knowing this , Reheating to remove strains . the reader can judge how 64.
... of steel , and assures the reader that a piece of steel hardened at the refining heat requires a much greater force to break it than one heated to a full red . Knowing this , Reheating to remove strains . the reader can judge how 64.
Сторінка 65
... strains . the reader can judge how much heavier cuts can be taken with a tool properly heated than with one heated too hot , as the steel is made brittle , and in this condi- tion is more liable to chip or flake off under pressure . The ...
... strains . the reader can judge how much heavier cuts can be taken with a tool properly heated than with one heated too hot , as the steel is made brittle , and in this condi- tion is more liable to chip or flake off under pressure . The ...
Сторінка 66
... strains . The method pursued in removing the strains varies . If an open fire is at hand , the piece may be held over this until heated to the proper temperature . It should be constantly turned , in order to insure uni- form results ...
... strains . The method pursued in removing the strains varies . If an open fire is at hand , the piece may be held over this until heated to the proper temperature . It should be constantly turned , in order to insure uni- form results ...
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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