PL4525B1 - A method of processing manganese steels with cutting tools, which until now could only be processed with grinding. - Google Patents

A method of processing manganese steels with cutting tools, which until now could only be processed with grinding. Download PDF

Info

Publication number
PL4525B1
PL4525B1 PL4525A PL452523A PL4525B1 PL 4525 B1 PL4525 B1 PL 4525B1 PL 4525 A PL4525 A PL 4525A PL 452523 A PL452523 A PL 452523A PL 4525 B1 PL4525 B1 PL 4525B1
Authority
PL
Poland
Prior art keywords
processed
grinding
cutting tools
until now
manganese steels
Prior art date
Application number
PL4525A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL4525B1 publication Critical patent/PL4525B1/en

Links

Description

Wynalazek dotyczy obróbki materjalów warsztatowych, uwazanych za zdatne tylko do szlifowania i ma na celu umozliwienie obróbki tychze z pomoca narzedzi tnacych np. nozy tokarskich, strugarskich, gryzów, wiertel i t. d.Do materjalów warsztatowych powyz¬ szego rodzaju nalezy, np. czesto uzywana z powodu odpornosci na starcie, mniej wie¬ cej 12%-towa stal manganowa. Mozna wprawdzie przedmioty z takiej stali obra¬ biac zapomoca szlifowania, cienkie blachy z tej stali przecinac nozycami lub wycinac w nich otwory, lecz obróbka zapomoca na¬ rzedzi tnacych na tokarkach, gryzarkach, strugarkach, wiertarkach i podobnych ma¬ szynach byla dotad praktycznie niemozli¬ wa. Przedmioty, które mozna wyrobic tyl¬ ko zapomoca narzedzi tnacych, ze stali manganowej mozna bylo wykonac tylko w ten sposób, ze miejsca obrabiane winny byc z miekkiej stali, która otaczano odlewem ze stali manganowej. Sposób ten mozna by¬ lo jednak stosowac tylko w wyjatkowych wypadkach, byl on zreszta bardzo zawily i czesto zawodzil. Po wiekszej czesci osa¬ dzenie miekkiej stali przy wyrabianiu od¬ lewów z 12%-wej stali manganowej bylo wogóle niemozliwe, szczególnie, jezeli z odlewów wyrabiano przedmioty zapomoca kucia lub walcowania.Wynalazek niniejszy umozliwia obrób¬ ke materjalów warsztatowych wspomnia¬ nego rodzaju, tak samo latwa zapomocanarzadzi tnacych jak i materjalów zwy¬ klych. Cel powyzszy,, osiagnieto w ten spo- i ^sób, ze p|-z€fdmioJt utpga obróbce w stanie * -Rozgrzanym.Dla obróbki stosuje sie narzedzia ze sta¬ li szybkotnacej lub metalu o podobnych wlasciwosciach, np. ze stellitu, których o- strza mozna rozgrzewac do stosunkowo wy¬ sokiej temperatury. Najwyzsza dopuszczal¬ na temperatura ostrza zostaje wprawdzie osiagnieta juz przy stosunkowo malej chy- zosci ciecia z powodu rozgrzanego przed¬ miotu i dlatego tez dzielnosc ciecia nie jest tak wielka jak przy obróbce zwyklym no¬ zem stalowym, jest jednak przy odpowied¬ nio dobranej temperaturze przedmiotu tej samej wielkosci jak przy obróbce jeszcze dobrze obrabialnej stali, o wysokiej wy¬ trzymalosci na zlamanie, narzedziami nie szybkotnacemu Temperatura, do której na¬ lezy rozgrzac przedmiot podczas obróbki, wynosi przy 12%-owej stali manganowej okolo 400*0. Mozna jednaik polepszyc znacznie zdolnosc obrabiania juz przy tem¬ peraturze okolo 150°C.Niniejszy wynalazek rozszerza znacznie granice zastosowania 12-% owej stali man¬ ganowej. Mozna np. sposobem wedlug wy¬ nalazku w kutych nozach kubelków dla poglebiarek, które musza byc w okreslonych miejscach zaopatrzone w otwory dla przy¬ mocowania ich do kubelków, otwory te wiercic obecnie bez zadnej trudnosci. PLThe invention relates to the processing of workshop materials, considered only suitable for grinding, and is intended to enable the processing of these materials with cutting tools, e.g. lathe knives, planer knives, cutters, drills, etc. The workshop materials of the above type should be used, e.g. wear resistance, approximately 12% manganese steel. Although it is possible to machine workpieces made of such steel with grinding, thin sheets of this steel can be cut with scissors or holes in them, but machining with cutting tools on lathes, cutters, planers, drills and similar machines has been practically impossible so far. wa. Objects that could only be made with cutting tools from manganese steel could only be made in such a way that the workpieces were to be made of mild steel which was surrounded by a manganese steel casting. This method, however, could only be used in exceptional cases, and it was very complicated and often failed. For the most part, settling mild steel when making 12% manganese steel castings was not possible at all, especially if the castings were made into objects without forging or rolling. The present invention allows the processing of workshop materials of the above-mentioned type, just as easy with cutting tools as with ordinary materials. The above objective is achieved in such a way that the heat treatment is carried out in the * -heated state. For machining, tools with a high-speed constant or metal with similar properties, e.g. made of stellite, are used. The blades may be heated to a relatively high temperature. The highest allowable temperature of the blade is achieved already with a relatively low cutting speed due to the heated object and therefore the cutting capacity is not as great as in the case of machining with an ordinary steel knife, it is, however, with a properly selected object temperature the same size as for the treatment of still well-machinable steel, high fracture strength, with non-high-speed tools. The temperature to which the workpiece must be heated during machining is about 400.0% for 12% manganese steel. However, the workability can be improved considerably already at temperatures around 150 ° C. The present invention extends the application limits of 12% manganese steel considerably. For example, in the method according to the invention, in the forged bucket knives for dredgers, which must be provided with holes in certain places for attaching them to the buckets, these holes can now be drilled without any difficulty. PL

Claims (1)

1. Zastrzezenie patentowe. Sposób obróbki narzedziami tnacemi (noze tokarskie, strugarskie, gryzy, wier¬ tla i t d.), stali manganowych, które do¬ tychczas mozna bylo obrabiac tylko zapo- moca szlifowania, znamienny tern, ze przed¬ mioty z tych stali ulegaja obróbce w stanie rozgrzanym, ponizej temperatury czerwo¬ nego zaru, zapomoca narzedzi ze stali szybkotnacej lub metalu o podobnych wla¬ sciwosciach. Fried. Krupp Aktiengesellschaft. Zastepca: Cz. Raczynski, rzecznik patentowy. Dr-jk L. Boguslawskiego Warszawa. PL1. Patent claim. The method of processing with cutting tools (turning knives, planing knives, cutters, drills, etc.), manganese steels, which until now could only be processed by grinding, characterized by the fact that objects made of these steels are processed below the temperature of red heat, using tools made of high speed steel or metal with similar properties. Fried. Krupp Aktiengesellschaft. Deputy: Vol. Raczynski, patent attorney. Dr. jk L. Boguslawski Warsaw. PL
PL4525A 1923-02-21 A method of processing manganese steels with cutting tools, which until now could only be processed with grinding. PL4525B1 (en)

Publications (1)

Publication Number Publication Date
PL4525B1 true PL4525B1 (en) 1926-05-31

Family

ID=

Similar Documents

Publication Publication Date Title
Stachurski et al. Influence of application of hybrid MQL-CCA method of applying coolant during hob cutter sharpening on cutting blade surface condition
US3191463A (en) Solid boring apparatus
JP4300546B2 (en) Metal working water and metal working composition
Sulaiman et al. Effect of high-speed parameters on uncoated carbide tool in finish turning titanium Ti-6Al-4V ELI
US20060032333A1 (en) Solid state processing of industrial blades, edges and cutting elements
PL231958B1 (en) Method for continuous machining of a surface and the tool for continuous machining of a surface
PL4525B1 (en) A method of processing manganese steels with cutting tools, which until now could only be processed with grinding.
Timofeev et al. Improving the quality of manufacturing parts from titanium alloys using the method of preliminary local plastic deformation
Finn Machining of aluminum alloys
SU1335854A1 (en) Method of estimating comparable wear resistance of cutting tools
Armitage et al. Influence of Steel Hardness in Face-Milling
Son et al. Optimization of cutting parameters when surface milling with face milling tool according to the stages of response surface method
SU428864A1 (en) CUTTING METHOD
SINGH T-700 blisk/impeller cutter life improvement program
SE8405867D0 (en) PROCEDURE FOR S TERMOMECHANICAL PROCESSING OF THE WORK PIECE PROCEDURE FOR S TERMOMECHANIC PROCESSING OF THE WORK PIECE
RU2202448C2 (en) Method for making disc cutter
SU319380A1 (en) METHOD OF TURNING PROCESSING UNION'S - ^^: t't '' ^ ••: '-.-' GENE
SU664754A1 (en) Method of working by cutting with a multiblade rotating tool
Tonshoff et al. Cutting Interruption: Turning and Milling, a Process Comparison
HITOMI et al. Machinability of Nodular Cast Irons: Tool Life Tests on Pearlitic Nodular Cast Irons
Olofson et al. Machining of Superalloys and Refractory Metals
PL24629B1 (en) Metalworking tool with a special ITH blade.
DE393371C (en) Process for processing hard types of steel containing manganese
Sharkus Counter Intelligence
Indakov et al. Investigation of the process rotary turning by multi-faceted cutters