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

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.

An Innovative Process for Segmenting of Guide Tubes

2011 ◽  
Author(s):  
Patrick Gobert ◽  
Pierre-Henri Ponchon ◽  
Stefan Fallstro¨m ◽  
Joseph Boucau
Keyword(s):  
Waste Management ◽  
Waste Treatment ◽  
Complete Solution ◽  
Control Rod ◽  
Innovative Process ◽  
Service Training ◽  
Band Saw ◽  
Mechanical Cutting ◽  
Radiological Studies ◽  
Over Time

The purpose of this paper is to describe an innovative process for segmenting PWR Guide Tubes (GT’s) and the service (training and execution) that can be performed successfully and safely. Over time, some utilities are replacing control rod GT’s and store them in temporary disposal facilities. Due to lack of space, as the case for the BCOT (EDF – France / Tricastin), it is sometimes needed to cut and condition them in waste packages for final disposal and waste treatment. Based on its experience, Westinghouse has recently developed a complete solution for cutting and consolidating GT’s. One of the challenges related to such equipment is to consider two routes for the waste management: one for the activated segments and another for the less activated segments. Depending on the regulation and of the storage acceptance criteria’s, the length of the segments has been defined to minimize the volume of highly activated waste and therefore develop a process which is adapted to the size of containers specified by the customer. A model with five cutting operations and generating six segments has been chosen. In order to minimize risks and ensure safety for personnel and facilities, radiological studies were performed for various configurations. All cutting techniques previously used by Westinghouse in similar applications have been evaluated. Underwater mechanical cutting with a band saw has been selected.

Research on the Concept of Controlled Speed Based on Cutting Band Saw

2013 ◽  
Vol 584 ◽  
pp. 45-49
Author(s):  
Ying Chun Xue
Keyword(s):  
Removal Rate ◽  
Cutting Speed ◽  
Machine Design ◽  
Feed Speed ◽  
Cutting Efficiency ◽  
The Past ◽  
Equation Solving ◽  
Cutting Machine ◽  
Band Saw ◽  
Core Problem

Speed control is the core problem of cutting machine design, the past has been the experience of adjusting the cutting speed, the lack of theoretical basis, randomness. In view of this, according to the basic requirements of cutting efficiency maximization, deduces the removal rate and feed speed, time equation, solving the cutting efficiency problem exists in the design of machine, and established when the removal rate is constant, relation curves of shear rate and time. Use of the method of cutting machine design, can improve the accuracy and scientific design, has higher application value.

scholarly journals Notch-acuity effects on the fracture toughness of saline ice

1991 ◽  
Vol 15 ◽  
pp. 230-235 ◽  
Author(s):  
S.J Defranco ◽  
Y. Wei ◽  
J. P. D. Dempsey
Keyword(s):  
Fracture Toughness ◽  
Notch Root ◽  
Crack Tip ◽  
Constant Thickness ◽  
Razor Blade ◽  
Mean Values ◽  
Fracture Testing ◽  
Apparent Fracture Toughness ◽  
Band Saw ◽  
Image Position

Dynamic ocean-induced loading of ice has recently prompted interest in the fatigue strength of ice and, consequently, aspects of the fracture testing of ice need to be examined. One aspect in fracture testing, the effects of notch acuity on the apparent fracture toughness (KQ) of saline ice, was investigated in this study using four groups of single-edge notched-bend specimens with different crack-(or notch-) root radii, fabricated by four different methods; namely, drilling a small hole of two different radii at the crack tip, cutting a crack with a band saw and using a hand-held razor blade to scribe a sharp crack. For this study, tests were performed on saline ice using one crack length and orientation, constant thickness and constant temperature (−25°C). The mean values and the standard deviations of the apparent fracture toughness of the specimens with blunt notches were higher than those with sharp cracks. The results presented in a plot of fracture toughness versus where ρ is the crack-tip radius, provide a preliminary estimate of the required notch acuity for fracture-toughness testing of saline ice.

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