Horizontal Band Saw

1895 ◽  
Vol 39 (1009supp) ◽  
pp. 16132-16132
Keyword(s):  
Band Saw ◽  
Horizontal Band

scholarly journals A Critical Reanalysis of Uncontrollable Washboarding Phenomenon in Metal Band Sawing

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4472
Author(s):  
Kazimierz A. Orlowski ◽  
Michal Dobrzynski ◽  
Grzegorz Gajowiec ◽  
Marcin Lackowski ◽  
Tomasz Ochrymiuk
Keyword(s):  
Outer Layer ◽  
High Hardness ◽  
Cutting Process ◽  
Processed Material ◽  
Material Texture ◽  
Core Hardness ◽  
Wave Regeneration ◽  
Cutting Processes ◽  
Band Saw ◽  
Horizontal Band

The article analyzes the cutting process of hard bars. Investigations conducted in industrial conditions demonstrated the presence of surface errors in the machined workpieces in the form of washboard patterns. The purpose of this study was to analyze the results of cutting on band sawing machines with different band saw blades. The cutting processes were conducted on three different horizontal band sawing machine types. Analyzed material was an alloy steel Ø40 mm rod with a hardened surface covered with a thin layer of chromium. The hardness of the outer layer was 547 HV with a core hardness of 180 HV. The surface topography measurements of the processed workpieces were carried out with the 3D Optical Profiler, which supplied information on the irregularities of the processed material texture. In each of the analyzed cases, a corrugated surface was obtained after sawing, which is the effect of the occurrence of the washboarding phenomenon, despite the fact that the teeth of each band saw had variable pitches. The washboarding phenomenon when cutting rods with hard surfaces is caused by the phenomenon of wave regeneration. Despite the use of variable pitch saw blades, the cutting process results in rippling of the sawn surface, which is caused by the high hardness of the outer layer of the workpiece, as well as by the type of tool with spring setting of teeth.

scholarly journals Research of dynamic processes at cutting forest materials on horizontal band saw equipment

2021 ◽  
Vol 875 (1) ◽  
pp. 012070
Author(s):  
A I Maksimenkov ◽  
V V Abramov ◽  
O P Bagno ◽  
R V Yudin
Keyword(s):  
Dynamic Model ◽  
Technological Process ◽  
Energy Intensity ◽  
High Energy ◽  
Foreign Firms ◽  
Small Scale ◽  
Resource Saving ◽  
Band Saw ◽  
Horizontal Band

Abstract For processing small-scale wood, as well as wood from logging and sanitary logging, small enterprises are created that use fairly large and expensive band saws of various foreign firms and domestic production, which have a high energy intensity of the technological process. In this regard, the development of a resource-saving band saw machine that improves the quality of saw products and reduces the energy intensity of the technological process is an urgent task for the timber processing industry. To study the dynamics of the process of sawing wood on a horizontal band saw, it is necessary to create its dynamic model, which is a mathematical description of the interaction of the cutting process and the equivalent elastic system of the machine. The problem of the quality of wood sawing is both the accuracy of processing and the roughness of the surface to be processed. To assess the accuracy of wood sawing, two indicators were used: average and maximum undulation. As a result of the research, a new design of the band saw was developed using a dynamic model, which ensures resource saving, reducing the energy intensity of the technological process and improving the quality of the resulting saw products.

Band Saw for Iron

1884 ◽  
Vol 17 (436supp) ◽  
pp. 6956-6956
Keyword(s):  
Band Saw

A 65nm CMOS quad-band SAW-less receiver for GSM/GPRS/EDGE

2010 ◽  
Author(s):  
A. Mirzaie ◽  
A. Yazdi ◽  
Z. Zhou ◽  
E. Chang ◽  
P. Suri ◽  
...  
Keyword(s):  
Band Saw

5. On a Monochromatic Rainbow

1889 ◽  
Vol 15 ◽  
pp. 135-137
Author(s):  
John Aitken
Keyword(s):  
The Sun ◽  
The South ◽  
Band Form ◽  
Horizontal Band ◽  
Do So

A monochromatic rainbow looks like a contradiction in terms. As a rainbow of this kind was, however, seen lately, its occurrence seems worth putting on record. On the afternoon of Christmas day I went for a walk in the direction of the high ground to the south of Falkirk. Shortly after starting I observed in the east what appeared to be a peculiar pillar-like cloud, lit up with the light of the setting sun. What specially attracted my attention was that the streak of illumination was vertical, and not the usual horizontal band-form we are accustomed to. I looked in the direction of the sun to see if I could trace any peculiar opening in the clouds through which the light passed, but failed to do so.

A New Technology to Machine Bimetal Band Saw

2016 ◽  
Vol 861 ◽  
pp. 9-13
Author(s):  
Hong Jian Dong ◽  
Qin He Zhang ◽  
Lei Tan ◽  
Guo Wei Liu ◽  
Tuo Dang Guo
Keyword(s):  
Electrical Discharge ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
New Technology ◽  
High Speed Steel ◽  
Processing Route ◽  
Grinding Process ◽  
Wire Electrical Discharge Machining ◽  
Low Carbon ◽  
Band Saw

As a kind of commonly used tools, junior hacksaw plays an important role in our daily life. A new kind of bimetal band saw taken low carbon medium alloy steel X32 as the backing material and the high-speed steel M42 as the saw tooth material is developed. In this paper, a new method to machine the bimetal band saw with wire electrical discharge machining (WEDM) is introduced. The processing route for common tooth profile is calculated. The fixture with specific angles is designed with CAD software (proe5.0) and machined with 3D printing technology. The experiments show that bimetal band saw machined with WEDM method has better surface quality compared with that machined through the traditional grinding process. Without any burrs, the new bimetal band saw is more resistant to wear and has a longer service life.

Study on Material-Cutting with Electro-Hydraulic Servo Synchronization Control System for Large Band Saw Equipment

2013 ◽  
Vol 675 ◽  
pp. 86-90
Author(s):  
Guo Jin Chen ◽  
Jing Ni ◽  
Tin Tin Liu ◽  
Hui Peng Chen ◽  
Ming Xu
Keyword(s):  
Control System ◽  
Force Feedback ◽  
Synchronization Control ◽  
Servo Drive ◽  
Nc System ◽  
Hydraulic Cylinders ◽  
Hydraulic Servo ◽  
Control Technologies ◽  
Band Saw ◽  
Movement Synchronization

Aiming at the cutting for various kinds of material, in order to solve the problems that the present large band saw equipment at home is poor in the synchronization of the sawing feed and is lack of the dedicated NC system, the paper introduces the electro-hydraulic servo drive and digital control technologies, researches the synchronous servo drive and cutting force feedback control technologies, and develops the sawing machine’s control system based on the above technologies. The NC system has been applied in the CNC band saw equipment of the large Portal style. The saw frame uses the structure driven synchronously by the dual hydraulic cylinders in order to guarantee the accuracy of the feed motion. The control system driven by the electro-hydraulic servo synchronization detects the implementation of a two cylinders and does the displacement feedback to achieve the movement synchronization on both ends of the portal frame using the synchronous control strategy. That ensures the movement accuracy for the CNC band saw equipment of the large Portal style and improves the cutting accuracy and efficiency of the equipment.

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