HRP20030684A2 - Base material for saw blades or band saws - Google Patents
Base material for saw blades or band saws Download PDFInfo
- Publication number
- HRP20030684A2 HRP20030684A2 HR20030684A HRP20030684A HRP20030684A2 HR P20030684 A2 HRP20030684 A2 HR P20030684A2 HR 20030684 A HR20030684 A HR 20030684A HR P20030684 A HRP20030684 A HR P20030684A HR P20030684 A2 HRP20030684 A2 HR P20030684A2
- Authority
- HR
- Croatia
- Prior art keywords
- cutting material
- semi
- parts
- saw
- steel strip
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 56
- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 239000011265 semifinished product Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 29
- 229910001315 Tool steel Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 229910000997 High-speed steel Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Abstract
Izum sa odnosi na poluproizvod za proizvodnju lista pile ili trake za pilu iz žilavog, elastičnog čelika, kod kojega zubi pile imaju područje vrhova zuba iz tvrdog materijala koji je otporan na trošenje. Nadalje izum obuhvaća postupak za proizvodnju poluproizvoda za list pile ili trake za pilu, koji imaju zube pile s područjem vrhova zuba iz tvrdog materijala koji je otporan na trošenje.Za sprečavanje naprezanja u području umetnutog dijela koji je od reznog materijala, kao i za povišenje kvalitete i iz ekonomskih razloga, predviđeno je prema izumu, da poluproizvod (1), koji je načinjen iz čelične trake (2), koja traka nosi čeono na svakom mjestu na kojemu kod pile (4) koja je izrađena iz trake dolaze vrhovi zuba (41), ima dijelove (3) načinjene od reznog materijala. Postupak u skladu s izumom je karakterističan po tome, što su čeono na čeličnoj traci na svim mjestima na kojima je predviđeno da dođu kod trake za pilu vrhovi zuba, postavljeni bez raspora dijelovi od reznog materijala i spojeni su s čeličnom trakom pomoću zavarnog spoja.The invention relates to a semi-finished product for the production of saw blades or saw blades made of tough, elastic steel, in which the teeth of the saw have an area of tooth tips made of hard material that is resistant to wear. The invention further relates to a method for the manufacture of semi-finished saw blades or saw blades having saw blades with a tooth-tip region of wear-resistant hard material. and for economic reasons, it is provided according to the invention that the semi-finished product (1) is made of steel strip (2), which strap carries the front at each point where the teeth (4) come from the tape (41) ), has parts (3) made of cutting material. The method according to the invention is characterized by the fact that the ends of the tooth at all points where the tips of the saw are intended to come to the saw bar, the non-spaced sections of the cutting material and are connected to the steel strip by a weld.
Description
Područje izuma Field of invention
Izum se odnosi na poluproizvod za izradu trake za pilu ili lista za pilu od žilavog, elastičnog čelika, kod kojega zubi pile imaju područje vrha zuba iz tvrdog materijala koji je otporan na trošenje. The invention relates to a semi-finished product for the production of a saw band or a saw blade made of tough, elastic steel, where the saw teeth have a tooth tip area made of a hard, wear-resistant material.
Nadalje izum obuhvaća postupak za izradu poluproizvoda za list za pilu ili traku za pilu, koji ima zube pile s područjima vršaka zuba iz tvrdog materijala koji je otporan na trošenje. Furthermore, the invention includes a process for making a semi-finished product for a saw blade or saw band, which has saw teeth with tooth tip areas made of a hard, wear-resistant material.
Stanje tehnike State of the art
Kao poluproizvod za izradu pila s tvrdim područjem vrha zuba, koji vrhovi su otporni na trošenje, obično se upotrebljava sastavljen čelični list ili sastavljena čelična traka, koji imaju u presjeku na uskoj strani elastičnog savitljivog dijela pile ili nosivog dijela jedan tanki dio iz alatnog čelika. Dijelovi su jedan s drugim metalno spojeni najčešće pomoću zavarivanja taljenjem bez dodatka. As a semi-finished product for the production of saws with a hard area of the tip of the teeth, which tips are resistant to wear, a composite steel sheet or a composite steel strip is usually used, which have a thin part of tool steel in the cross-section on the narrow side of the elastic flexible part of the saw or the bearing part. The parts are connected to each other metallically, most often by means of fusion welding without additives.
Ovaj poluproizvod, koji se u stručnom svijetu naziva bimetalna traka ili bimetalni list, proizvodi se zavarnim spajanjem traka ili dijelova u uzdužnom smjeru, poželjno pomoću postupka zavarivanja elektronskim snopom ili laserskim snopom. This semi-finished product, which in the professional world is called bimetallic strip or bimetallic sheet, is produced by welding together strips or parts in the longitudinal direction, preferably using an electron beam or laser beam welding process.
Proizvodnja pile iz poluproizvoda nastaje uglavnom tako, da se u predjelu trake sa slojem alatnog čelika unese profil zuba sve do nosivog dijela, tako da se samo područja vrha zuba sastoje od alatnog čelika ili reznog materijala, koja područja se na kraju mogu otvrdnuti završnom termičkom obradom. The production of a saw from a semi-finished product occurs mainly by inserting a tooth profile in the area of the strip with a layer of tool steel up to the load-bearing part, so that only the areas of the top of the teeth consist of tool steel or cutting material, which areas can eventually be hardened by final heat treatment .
Također je poznata trostruka metalna traka kao poluproizvod za proizvodnju pila, pri čemu se zavaruju, na svaku od strana nosivog dijela, čeono u poprečnom presjeku, umetci od reznog materijala, nakon čega slijedi rascjepljivanje trake u uzdužnom smjeru i obrada zuba na strani trake koja je snabdjevena s materijalom od alatnog čelika. A triple metal strip is also known as a semi-finished product for the production of saws, in which inserts of cutting material are welded to each side of the bearing part, frontally in the cross section, followed by splitting the strip in the longitudinal direction and processing the teeth on the side of the strip that is supplied with tool steel material.
Bit izuma The essence of invention
Prednosti poluproizvoda, kod kojega je nosiva traka po cijeloj dužini spojena, odnosno zavarena s trakom od reznog materijala, vide se u tome, što je zavarivanje radi spajanja izvedeno bez prekidanja i zbog toga nema nikakve naknadne greške. Također i kod ozubljivanja pile s nejednakim razmacima među zubima, što može biti predviđeno u praktičnoj primjeni radi izbjegavanja osciliranja pile, može se povoljno primijeniti ovakva izvedba poluproizvoda. The advantages of the semi-finished product, in which the supporting strip is joined along its entire length, that is, welded to the strip of cut material, can be seen in the fact that the welding for joining is performed without interruption and, therefore, there are no subsequent errors. Also in the case of toothing of a saw with unequal distances between the teeth, which can be foreseen in practical application in order to avoid oscillation of the saw, this design of the semi-product can be advantageously applied.
Detaljan opis izuma Detailed description of the invention
Zavarivanje nosive trake i trake od reznog materijala, jedne na drugu, obavlja se, kako je spomenuto, direktno, dakle bez dodatnog materijala za zavarivanje i dobivaju se samo rijetke zone na koje utječe toplina zbog djelovanja postupka zavarivanja. Budući da se sada po cijeloj duljini trake uspostavlja povezanost pomoću zavarivanja taljenjem, mogu ipak, naročito kod grubljih traka, na nepovoljan način nastati rijetki krhki slojevi martenzita i/ili promjene po dužini, koji uzrokuju u danom slučaju elastično savijanje trake u smjeru širine trake. Rijetki krhki slojevi mogu nadalje kod nestručnog rukovanja potaknuti stvaranje pukotina i destabilizirati povezanost vrhova zubi pile. Često se predviđa, radi sigurnog izbjegavanja takvih problema i zbog kondicioniranja strukture, najmanje jedno odžarivanje poluproizvoda. The welding of the carrier strip and the strip of cutting material, one to the other, is done, as mentioned, directly, so without additional welding material and only rare zones are obtained that are affected by heat due to the action of the welding process. Since the connection is now established along the entire length of the strip by means of fusion welding, rare brittle layers of martensite and/or changes along the length of the strip, which cause elastic bending of the strip in the direction of the width of the strip, can occur in an unfavorable way, especially with rougher strips. Rare brittle layers can further cause cracks to form and destabilize the connection of the tips of the saw teeth in case of unprofessional handling. In order to safely avoid such problems and to condition the structure, at least one annealing of the semi-finished products is often foreseen.
Kod izrade pile iz lista poluproizvoda od bimetala ili iz isto takve trake za pilu, može se međuprostor između zubi izbrusiti, odštancati ili izglodati. U svakom slučaju je kod toga na isti usporediv način odneseno područje tvrdog reznog materijala koje se nalazi između vrhova zubi. When making a saw from a semi-finished sheet of bimetal or from the same saw band, the space between the teeth can be ground, stamped or milled. In any case, the area of hard cutting material located between the tips of the teeth was carried away in the same comparable way.
Odnošenje ili iznošenje materijala, naročito dijelova reznog materijala, kod stvaranja međuprostora između radnih zubi bimetalne trake ili naslage bimetalnih listova zahtjeva značajnu upotrebu alata, tako da se stvara umnogostručeno trošenje vremena obrade i povećano trošenje alata. Carrying or removing material, especially parts of cutting material, when creating an intermediate space between the working teeth of a bimetallic strip or a stack of bimetallic sheets, requires significant use of tools, so that it creates a multiplied consumption of processing time and increased tool wear.
Ovdje će izum ukloniti nedostatke i postaviti si zadatak, da stvori poluproizvod za izradu lista za pilu ili trake za pilu s vrhovima zuba iz tvrdog materijala, koji materijal je otporan na trošenje, i koji ima u području zavarivanja dijelova vrhova zuba manja mehanička naprezanja i najvišu kvalitetu spajanja, te zahtijeva male troškove pri obradi kao i malo trošenje alata kod izrade pila. Here, the invention will eliminate the shortcomings and set itself the task of creating a semi-finished product for the production of a saw blade or saw band with tooth tips from a hard material, which material is resistant to wear, and which has in the area of welding parts of the tooth tips lower mechanical stresses and the highest the quality of the connection, and requires low processing costs as well as low tool wear when making saws.
Izum je usmjeren također i na postupak za ekonomičnu proizvodnju poluproizvoda za list za pilu ili traku za pilu s tvrdim vrhovima zubi koji su otporni na trošenje, i uz poboljšanu kvalitetu istih. The invention is also directed to a process for economical production of semi-finished products for a saw blade or saw band with hard tooth tips that are resistant to wear, and with improved quality thereof.
Postavljeni zadatak se rješava u skladu s izumom za poluproizvod, kako je to u početku navedeno, i to tako, da je poluproizvod načinjen iz čelične trake, koja nosi na svakom mjestu na kojemu će biti načinjeni vrhovi zuba pile dijelove od reznog materijala. The set task is solved in accordance with the invention for the semi-finished product, as it was stated at the beginning, in such a way that the semi-finished product is made of a steel strip, which carries parts of the cutting material at each place where the tips of the saw teeth will be made.
Prednosti poluproizvoda, koji je u skladu s izumom, vide se uglavnom u tome, što na uskoj strani nosive trake samo mala područja i to ona, koja na kraju tvore vrhove zuba, imaju povezanost pomoću zavarivanja taljenjem s dijelom koji je načinjen od reznog materijala. Na taj način može biti poboljšana stabilnost trake i elastična savitljivost, pri čemu se postiže ušteda na reznom materijalu. Prema mišljenju stručnog svijeta mogu na početku zavarnog šava nastati mjesta s greškama u spajanju i to u većoj količini, što se pak, na iznenađujući način, kod proizvodnje poluproizvoda u skladu s izumom ne može primijetiti. Štoviše, može se ustanoviti, na osnovi čvrstoće na savijanje pri izmjeničnom opterećenju i metalografskih istraživanja, znatno povećana kvaliteta spajanja dijela reznog materijala s nosivim materijalom. The advantages of the semi-finished product, which is in accordance with the invention, are mainly seen in the fact that on the narrow side of the carrier strip, only small areas, namely those that eventually form the tips of the teeth, are connected by means of fusion welding to the part made of the cutting material. In this way, the stability of the tape and the elastic flexibility can be improved, while saving on the cutting material is achieved. According to the opinion of the expert world, at the beginning of the weld, there may be places with joining errors in a larger quantity, which, surprisingly, cannot be noticed in the production of semi-finished products in accordance with the invention. Moreover, based on the bending strength under alternating load and metallographic research, it can be established that the quality of the connection between the part of the cutting material and the bearing material has increased considerably.
Naročito visoka kvaliteta poluproizvoda se može postići, ako je povezanost između čelične trake ili nosivog dijela i dijela reznog materijala načinjena pomoću zavarivanja laserom ili električnim otpornim-zavarivanjem pod tlakom. A particularly high quality of the semi-finished product can be achieved if the connection between the steel strip or the supporting part and the part of the cutting material is made by means of laser welding or electrical resistance-welding under pressure.
Prednost ima rezni alat koji je načinjen od alatnog čelika, naročito od brzoreznog čelika ili od tvrdog metala, jer na taj način pile, koje su načinjene iz poluproizvoda, imaju naročito veliku moć rezanja. A cutting tool made of tool steel, especially high-speed steel or hard metal, has the advantage, because in this way saws, which are made from semi-finished products, have a particularly high cutting power.
S obzirom na stabiliziranje dijela reznog materijala na nosivoj traci, i s obzirom na naročitu kvalitetu spajanja koje se susreće kod izrade poluproizvoda koji je u skladu s izumom, i konačno s obzirom na zube pile, može biti povoljno, ako su dijelovi od reznog materijala barem djelomično čeono spušteni u čeličnu traku. With regard to the stabilization of a part of the cutting material on the carrier strip, and with regard to the special quality of joining encountered in the production of a semi-finished product in accordance with the invention, and finally with regard to the teeth of the saw, it can be advantageous if the parts of the cutting material are at least partially frontally lowered into a steel strip.
Naročito s gospodarskog stanovišta može biti povoljno, ako je širina čelične trake ili nosive trake veća od 15 mm, poželjno veća od 40 mm. Especially from an economic point of view, it can be advantageous if the width of the steel strip or load-bearing strip is greater than 15 mm, preferably greater than 40 mm.
Daljnji cilj izuma se postiže kod postupka za ovu vrstu proizvoda tako, da se na čeličnu traku čeono na sva mjesta na kojima su predviđena područja vrhova zuba pile, stave bez raspora dijelovi reznog materijala i spoje sa čeličnom trakom. A further goal of the invention is achieved in the process for this type of product, by placing parts of the cutting material without any gap on the steel strip in front of all the places where the tip areas of the saw teeth are intended and connecting them to the steel strip.
Prednosti postupka koje se postižu izumom mogu se uglavnom vidjeti u tome, da se može postići visoka proizvodna tehnička fleksibilnost izrade uz malu zapremninu skladišta za dijelove reznog materijala kod izrade poluproizvoda. Radi toga se, zbog stavljanja reznog dijela na malu površinu, postiže najveća moguća sigurnost kod zavarnog spajanja s nosivim dijelom. The advantages of the process achieved by the invention can mainly be seen in the fact that high production technical flexibility can be achieved with a small storage volume for parts of the cutting material when making semi-finished products. Because of this, due to the placement of the cutting part on a small surface, the greatest possible safety is achieved during the welding connection with the load-bearing part.
S obzirom na tehniku izrade, ali također i s obzirom na najveću moguću točnost pozicioniranja reznog područja, može biti povoljno, ako su u čeličnoj traci čeono postavljenja udubljenja, zbog čega se kod unošenja dijelova reznog materijala u ova udubljenja postiže dosjedanje dijelova reznog materijala bez raspora i zatim njihovo zavarivanje s čeličnom trakom. With regard to the production technique, but also with regard to the highest possible accuracy of the positioning of the cutting area, it can be advantageous if there are depressions placed in the front of the steel strip, which is why when introducing parts of the cutting material into these depressions, the parts of the cutting material fit together without gaps and then welding them with a steel strip.
Kada se obavlja zavarivanje dijelova reznog materijala s čeličnom trakom pomoću postupka zavarivanja elektronskim snopom, laserskim snopom ili postupkom električnog otpornog zavarivanja pod pritiskom, može se s jedne strane postići sigurno spajanje, a s druge strane se može postići, na naročito povoljan način, neposredno vođenje postupka zavarivanja. When welding parts of the cut material with steel strip using the electron beam, laser beam or electric resistance welding process under pressure, a safe connection can be achieved on the one hand, and direct control of the process can be achieved, on the other hand, in a particularly favorable way welding.
Postupak električnog otpornog zavarivanja pod pritiskom je šavni postupak s direktnim prolazom struje kroz područje nalijeganja dijela reznog materijala na nosivu traku. The process of electrical resistance welding under pressure is a seaming process with direct passage of current through the area where a part of the cutting material adheres to the carrier strip.
Odlična kvaliteta spajanja može se uspostaviti, ako su dijelovi reznog materijala od alatnog čelika, poželjno brzoreznog čelika, naročito visokolegiranog brzoreznog čelika, izrađeni prema postupku dobivanja materijala iz praha ili iz tvrdog metala. Ovaj porast kvalitete djeluje također povoljno kod izrade zuba pile, i ako ustreba kod termičke obrade nedovršenih pila. Excellent joining quality can be established if parts of the cutting material are made of tool steel, preferably high-speed steel, especially high-alloy high-speed steel, made according to the process of obtaining material from powder or hard metal. This increase in quality is also advantageous in the production of saw teeth, and if necessary in the heat treatment of unfinished saws.
U smislu najekonomičnije proizvodnje pila koje imaju različitu raspodjelu zuba, može biti prednost, ako se predvidi takva duljina čeonih udubljenja u čeličnoj traci i/ili duljina pojedinih dijelova od reznog materijala i/ili međusobni razmak dijelova od reznog materijala, uz koji razmak se svaki od ovih dijelova reznog materijala čeono povezuje sa čeličnom trakom, koje duljine ili razmaci odgovaraju predviđenom profilu zuba pile. In terms of the most economical production of saws that have a different distribution of teeth, it can be an advantage if such a length of the front recesses in the steel strip and/or the length of the individual parts of the cutting material and/or the distance between the parts of the cutting material, with which distance each of these parts of the cutting material are connected face-to-face with a steel strip, the lengths or distances of which correspond to the expected profile of the saw teeth.
U jednom ostvarenju postupka, koji je u skladu s izumom, može biti predviđeno, da se za određenu čeličnu traku, i svaku od sekvencija na unaprijed predviđenim mjestima za dijelove od reznog materijala, postavljaju ovi dijelovi od reznog materijala i zavare ili umetnu u udubljenja na čeličnoj traci i povežu se s trakom zavarivanjem. Na taj način, u tako zvanoj nerazdijeljenoj proizvodnoj liniji, ekonomično proizvedeni poluproizvodi imaju također i uvažene prednosti u kvaliteti. In one embodiment of the procedure, which is in accordance with the invention, it can be provided that, for a certain steel strip, and each of the sequences at the predetermined places for parts of cutting material, these parts of cutting material are placed and welded or inserted into recesses on steel strip and are connected to the strip by welding. In this way, in the so-called undivided production line, economically produced semi-products also have recognized advantages in quality.
U sljedećem dijelu se izum pobliže objašnjava na osnovi predstavljenih crteža samo jednog načina izvedbe. In the following part, the invention is explained in more detail on the basis of the presented drawings of only one embodiment.
Opis slika Description of images
Slika 1 prikazuje poluproizvod koji je u skladu s izumom i koji je djelomično udubljen u dijelu reznog materijala koji je postavljen na nosivi list. Fig. 1 shows a semi-finished product in accordance with the invention which is partially recessed in a part of the cutting material which is placed on the carrier sheet.
Poluproizvod 1, koji je shematski prikazan na slici 1, predviđen je za proizvodnju lista pile 4 (prikazan crtkano), koji list pile ima načinjene zube s vrhovima zuba 41 od alatnog čelika. U skladu s tim, čelična traka 2 nosi dijelove 3 načinjene od reznog materijala, u danom slučaju od alatnog čelika, koji dio 3 je fiksno učvršćen na čeonoj strani pomoću spajanja zavarivanjem 31 na čeličnu traku. The semi-finished product 1, which is shown schematically in Figure 1, is intended for the production of a saw blade 4 (shown in dashed line), which saw blade has teeth made with tooth tips 41 of tool steel. Accordingly, the steel strip 2 carries parts 3 made of cutting material, in the given case of tool steel, which part 3 is fixed on the front side by means of a welding connection 31 to the steel strip.
Na slici 2 je shematski prikazan poluproizvod 1 s udubljenjima 21 koja su umetnuta u čeličnu traku ili čelični list 2. U svakom od udubljenja 21 je postavljen po jedan dio od reznog materijala 3, koji je najmanje na svojoj baznoj plohi 31 spojen pomoću rastalnog zavarnog spoja. Dovršena pila koja se dobije iz ovog poluproizvoda opet je prikazana crtkano, pri čemu je još prikazan složen položaj reznih dijelova 3 u poluproizvodu 1 pile 5. Figure 2 schematically shows the semi-finished product 1 with recesses 21 inserted into a steel strip or steel sheet 2. In each of the recesses 21, one part of the cutting material 3 is placed, which is connected at least on its base surface 31 by means of a fusion welding joint . The finished saw that is obtained from this semi-finished product is again shown in dashed lines, while the complex position of the cutting parts 3 in the semi-finished product 1 of the saw 5 is also shown.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HR20030684A HRP20030684A2 (en) | 2003-08-28 | 2003-08-28 | Base material for saw blades or band saws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HR20030684A HRP20030684A2 (en) | 2003-08-28 | 2003-08-28 | Base material for saw blades or band saws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP20030684A2 true HRP20030684A2 (en) | 2006-04-30 |
Family
ID=41259010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HR20030684A HRP20030684A2 (en) | 2003-08-28 | 2003-08-28 | Base material for saw blades or band saws |
Country Status (1)
| Country | Link |
|---|---|
| HR (1) | HRP20030684A2 (en) |
-
2003
- 2003-08-28 HR HR20030684A patent/HRP20030684A2/en not_active Application Discontinuation
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7373857B2 (en) | Composite metal article and method of making | |
| CN100575013C (en) | The manufacture method of combined type blades and this blade | |
| KR101257360B1 (en) | Welded steel pipe welded with a high energy density beam, and a manufacturing method therefor | |
| US20040060396A1 (en) | Starting material for saw blades or saw bands | |
| CN103506698B (en) | Two-sided manual hacksaw blade and manufacture method | |
| EP3184231A1 (en) | Method for laser welding of materials with different thicknesses and welded member having different thicknesses produced by said method | |
| US10710182B2 (en) | Method for producing a primary material for a cutting tool | |
| HRP20030684A2 (en) | Base material for saw blades or band saws | |
| EP3638445B1 (en) | Method for producing a cutting tool and cutting tool | |
| US20170157713A1 (en) | Method for producing a preliminary material for a machining tool, and corresponding preliminary material | |
| US3930426A (en) | Method of making a saw blade | |
| CN101903595A (en) | Method for manufacturing a metal belt used in a paper/board or finishing machine | |
| CN101374628A (en) | Joining method of high carbon steel for endless hot rolling and the apparatus therefor | |
| JPH02258301A (en) | Power saw guide bar | |
| RU2264893C2 (en) | Blank for saw webs or saw bands | |
| US5265500A (en) | Method of making shock-resistant and wear-resistant tools of composite steel structure | |
| UA76448C2 (en) | Billet for preparing of saw blades and method of its production | |
| US20020096499A1 (en) | Methods for manufacturing band saw blades | |
| KR101482409B1 (en) | Continuouse strip welding apparatus | |
| EP4265368A1 (en) | Laser cutting method for steel strip, laser cutting equipment, cold rolling method, and manufacturing method of cold-rolled steel strip | |
| TWI576184B (en) | Machine tool and manufacturing method | |
| WO2022241309A1 (en) | A method of forming a unitary metal piece | |
| PL433166A1 (en) | Method for finishing welding surfaces and a tool for carrying out this method | |
| JPH0669617B2 (en) | Welding method of punching blade for die-cutting | |
| ZHUDRA et al. | MATERIALS AND EQUIPMENT FOR SURFACING OF METAL HOT CUTTING KNIVES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A1OB | Publication of a patent application | ||
| ARAI | Request for the grant of a patent on the basis of the submitted results of a substantive examination of a patent application | ||
| ODRP | Renewal fee for the maintenance of a patent |
Payment date: 20080828 Year of fee payment: 6 |
|
| ODBC | Application rejected |