Intermittent motion, Mechanical Engineering

Assignment Help:

Intermittent motion

Most seam welding machine requirements are met by the use of continuous drive. However, in cases where heavy work parts are to be welded or more than a single weld pulse is required (for example, where it is necessary to apply preheat and quench and temper times or long weld times) intermittent motion must be used in order to retain electrode force over the weld nugget while the weld is being completed. Continuous motion would result in premature release of electrode force and therefore cause cracking, porosity and unacceptable welds. The work travels between the electrodes the distance required for each succeeding weld increment. The work stops during the quench and temper time where it is not required to move the job. The portable welding head is moved by motor driven wheels and air cylinder mechanism provides the electrode force. Standard seam welding machines are classified by throat depth.


Related Discussions:- Intermittent motion

Preliminary stress analysis, Preliminary stress analysis work will start ea...

Preliminary stress analysis work will start early in the detail engineering phase after completion of equipment layout and piping study drawings. The piping required to be analyzed

Loosening a part with multiple fasteners services tips, Loosening a Part wi...

Loosening a Part with Multiple Fasteners: Loosening a part with multiple fasteners should be done from the outside to inside in a criss-cross pattern, loosening the small fastener

Seam welding, Seam Welding Seam welding is different from spot welding ...

Seam Welding Seam welding is different from spot welding by the fact that roller type electrodes are used in the former case. The principle and process of welding are the same

Define the abrasive jet cutting machines, Define the Abrasive Jet Cutting M...

Define the Abrasive Jet Cutting Machines 1. Abrasive jet cutting machines which are used to cut sheet materials or to remove materials of work piece from a surface by generatin

What is the full form of step, What is STEP The STEP (Standard for Exte...

What is STEP The STEP (Standard for External Representation of Product Data) project is supported by the ISO workgroup TC 184/SC4. it is also sometimes called Standard for Exch

Effects of air resistance. , Traveling at a speed of 16.0 m/s, the driver o...

Traveling at a speed of 16.0 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the roa

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd