Russell Davison Engineering

Collection by Russell Davison

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Russell Davison
- Company investment potential - Assembly system selection is influenced by the company's policy towards investing in automation. Evolution, Vacuums, Engineering, Mechanical Engineering, Technology, Vacuum Cleaners
VacuumsVacuum Cleaners

Assembly Evolution (5/7)

- Company investment potential - Assembly system selection is influenced by the company's policy towards investing in automation. If the company requires a payback period of less than one year then it is unlikely that any form of automated assembly system can be economically justified. - Annual production volume – This determines the cycle time of the system and automatic systems must run continuously to be justified. If the annual volume is low then the product must be assembled manually…

The efficiency of an automatic free-flow assembly machine is less dependent on parts quality. Life Cycles, Evolution, Engineering, Mechanical Engineering, Technology
Life Cycles

Assembly Evolution (4/7)

The efficiency of an automatic free-flow assembly machine is less dependent on parts quality. The transfer of work pieces between each workstation is non-synchronous. Small buffer stocks are held between each workstation and the other workstations still operate even if one is stopped because of a fault, e.g. a defective part jammed in the escapement mechanism. The programmable automatic assembly machine has a non-synchronous transfer line with a series of programmable or robotic workstations…

The assembly operation consists of the two basic activities of handling and insertion. Assembly Line, Evolution, Engineering, Activities, Mechanical Engineering, Technology
Activities

Assembly Evolution (3/7)

The assembly operation consists of the two basic activities of handling and insertion. If a product is to be assembled automatically then thought has to be given to the economics of these activities. The automatic feeding of simple parts is usually carried out using a vibratory bowl feeder. Components in bulk random orientation are placed into the feeder and the parts are presented to the workhead in an ordered manner. Difficult parts may be fed by special feeders, hoppers or by magazines…

Russell Davison: Assembly Evolution (2/7) Evolution, Engineering, Mechanical Engineering, Technology

Assembly Evolution (2/7)

Technology Technology is the systematic knowledge of the industrial arts. Industrial engineers have been applying technology to the workplace for over two centuries. Manufacturing systems analysed by method and time studies have been improved by the division of labour, automation and robotics. Large productivity improvements have been achieved by applying technology to manufacturing processes. From the mechanisation of flour production to the robotic assembly of vehicles, process costs have…

I originally published this article under the title, “Changes in Assembly Work Environments” in the book “Programmable Assembly”, ISBN Evolution, Engineering, Comic Books, Comics, Comic Strips, Comic Book, Mechanical Engineering, Cartoons, Cartoons
CartoonsCartoons

Assembly Evolution (1/7)

I originally published this article under the title, “Changes in Assembly Work Environments” in the book “Programmable Assembly”, ISBN 0.903608.65.0. The role of the modern assembly worker is very different now from that of 3 generations ago. Improvements in parts quality consistency has eliminated the previously required skill of the apprentice trained fitter. A new breed of unskilled assembly workers has been created, through the division of labour, to carry out repetitive and mundane…

Russell Davison: Robot Parts Robot Parts, Engineering, Mechanical Engineering, Technology
Robot Parts

Robot Parts (2/4)

PARTS CLASSIFICATION FOR FEEDING It’s important to be able to classify or describe the features of a part so that particular part shapes can be identified. Firstly, a part can be classified according to it's basic shape, i.e. rotational or non-rotational. Each rotational or non-rotational part has a certain aspect ratio that allows it to be classified as being a disc, short cylinder, long cylinder, flat, long or cubic. Secondly, the amount of symmetry that a part possesses can be quantified…

Russell Davison: Case Study : Robot Assembly of Pneumatic Valves Generators, Case Study, Robot, Engineering, Mechanical Engineering, Robots, Technology
RobotRobots

Case Study : Robot Assembly of Pneumatic Valves (1/3)

This is a quick feasibility study that I was asked to carry out for a Swedish world leading manufacturer of compressors, generators, construction and mining equipment, industrial tools and assembly systems. They wanted a swift appraisal of the economics for the robot assembly of their pneumatic valves. INTRODUCTION The client company has committed to capital investment in a two-armed robot for the assembly of its range of pneumatic cylinders at one of its Swedish manufacturing plants. The…

I was asked to create this control valve mechanical test procedure for one of the world’s leading engineering companies. 1 Introduction 2 L. Engineering Companies, Control Valves

Control valve mechanical test procedure

I was asked to create this control valve mechanical test procedure for one of the world’s leading engineering companies. 1 Introduction 2 Location of tests in the manufacturing programme 3 Stem position error test 4 Deadband test 5 Hysteresis test 6 Hysteresis plus deadband test 7 Stroking time test 8 Operation instructions 9 Equipment specifications 1 Introduction The company has the facility to provide a permanent record of an assembled valve’s performance, whilst undergoing mechanical…

I was asked to create this control valve cryogenic test procedure for one of the world’s leading engineering companies. Engineering Companies, Control Valves

Control valve cryogenic test procedure

I was asked to create this control valve cryogenic test procedure for one of the world’s leading engineering companies. 1 Introduction 2 Location of tests in manufacturing programme 3 Test temperature of minus (-)196 Celsius 4 Test temperature above minus (-)196 Celsius 5 Equipment specifications 1 Introduction The company has the facility to carry out cryogenic testing of control valves at temperatures as low as minus (-)196 Celsius. Tests conducted at these temperatures include: (a) Seat…

I was asked to carry out this angle control valve seismic analysis for one of the world’s leading engineering companies. Engineering Companies, Control Valves

Control valve seismic analysis

I was asked to carry out this 16” angle control valve seismic analysis for one of the world’s leading engineering companies. 1.0 Summary of findings 2.0 Introduction 3.0 Identification of susceptible features to be analysed 3.1 Body studs 3.2 Area behind outlet flange 4.0 Identification of operational loads 4.1 Pressure of the line fluid 4.2 Tightening of the body stud nuts 4.3 Mass of the valve, actuator and bonnet 5.0 Calculations 5.1.0 Stresses imposed on the body studs by the action of…

I originally wrote this article, “Small enterprises” in October 2003 CASE STUDY : BURT’S BEES An opportunity is defined as consisting o. Opportunity, Coaching, Engineering, Management, Technology, Training, Tech, Tecnologia, Mechanical Engineering
OpportunityCoachingManagementTrainingTecnologia

Plastics technology

INJECTION MOULDING Injection moulded parts can be produced with; ribs, varying thicknessand good surface finishes using all thermoplastic materials. Theorientation of molecules and reinforcement occurs during theprocess. High pressure, nonuniform polymer shrinkage andorientation can lead to warpage and shrinkage over ribs andbosses. Warpage is most apparent with crystalline materials andwith large, flat parts. Methods of controlling these effects aredescribed below. Plastic granules are…