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Because of the political and religious discontent in England, families began to migrate abroad in enormous numbers. Faced with persecution and starvation at home, the open frontiers and generally less oppressive social environment of the New World seemed tantalizing indeed to many English people. The trip was difficult, and not all made it unscathed, but many of those who did get to Canada and the United States made important contributions to the young nations in which they settled. Some of the first North American settlers with Weldon name or one of its variants: Weldon Settlers in United States in the 17th CenturyWilliam Weldon who arrived in Virginia in 1619 aboard the ship "Bona Nova" 4William Weldon who settled in Virginia in 1624Elizabeth Weldon who settled in Salem, Massachusetts in 1630 as part of the Winthrop FleetRobert Weldon, who settled in Massachusetts in 1630 as part of the Winthrop FleetHenry Weldon, who arrived in Maryland in 1667 4... (More are available in all our PDF Extended History products and printed products wherever possible.)Weldon Settlers in United States in the 19th CenturyWilliam Weldon, who landed in New York in 1830 4James Weldon, aged 22, who arrived in New York in 1854 4Owen Weldon, who landed in Washington County, Pennsylvania in 1884 4
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Weldon is one of the many names that the Normans brought with them when they conquered England in 1066. The Weldon family lived in Northamptonshire, at Weldon.
Chamfering is the sinking of the heads of fixed screws into the board when no protrusion is allowed. We call this holes chamfered mechanical holes.
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The addition of about 10% of tungsten and molybdenum in total maximises efficiently the hardness and toughness of high speed steels and maintains those properties at the high temperatures generated when cutting metals.
Combining molybdenum, tungsten and chromium steel creates several alloys commonly called "HSS", with a hardness of 63 to 65 Rockwell C.
High speed steel tools are the most popular for use in woodturning, as the speed of movement of the work past the edge is relatively high for handheld tools, and HSS holds its edge far longer than high carbon steel tools can.[citation needed]
The main use of high-speed steels continues to be in the manufacture of various cutting tools: drills, taps, milling cutters, tool bits, hobbing (gear) cutters, saw blades, planer and jointer blades, router bits, etc., although usage for punches and dies is increasing.
In 1868, English metallurgist Robert Forester Mushet developed Mushet steel, considered the forerunner of modern high-speed steels. It consisted of 2% carbon, 2.5% manganese, and 7% tungsten. The major advantage of this steel was that it hardened when air cooled from a temperature at which most steels had to be quenched for hardening. Over the next 30 years, the most significant change was the replacement of manganese with chromium.[2]
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High speed steels are alloys that gain their properties from a variety of alloying metals added to carbon steel, typically including tungsten and molybdenum, or a combination of the two, often with other alloys as well.[10] They belong to the Fe–C–X multi-component alloy system where X represents chromium, tungsten, molybdenum, vanadium, or cobalt. Generally, the X component is present in excess of 7%, along with more than 0.60% carbon.
Outstanding amongst the family at this time was Gilbert Welton (or Gilbert de Wilton), Bishop of Carlisle (1352-1362); Sir Anthony Weldon (1583-1648), an English 17th Century courtier and politician, purported author of "The Court and Character of...Sir Anthony Weldon (d. 1649?), was an "English historical writer, of Swanscombe, Kent, descended from a younger branch of the family of Weltden of Northumberland. His father, Sir Ralph Weldon, knighte...John Weldon (1676-1736), was an English musician, born at Chichester on 19 Jan. 1676. He was educated at Eton College and Ralph Weldon (1674-1713), was a Benedictine monk, of the ancient family of Wel...
"The Tower, the manorial seat of the ancient family of Welton [in Northumberland], is fast going to decay; there are still remaining in tolerable preservation, two handsome rooms with Oriel windows. The Hall, an ancient mansion which, according to an inscription on the walls, was repaired in 1614, is still occupied." 1 Welton is also a village and civil parish in the East Riding of Yorkshire which literally means "farmstead by a spring or stream." 2
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The Taylor-White process[6] was patented and created a revolution in machining industries. Heavier machine tools with higher rigidity were needed to use the new steel to its full advantage, prompting redesigns and replacement of installed plant machinery. The patent was contested and eventually nullified.[7]
Welton is also a village and civil parish in the East Riding of Yorkshire which literally means "farmstead by a spring or stream." 2
In the United States, the name Weldon is the 2,248th most popular surname with an estimated 14,922 people with that name. 3
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Some of the Weldon family moved to Ireland, but this topic is not covered in this excerpt.Another 89 words (6 lines of text) about their life in Ireland is included in all our PDF Extended History products and printed products wherever possible.
Anglo-Norman names tend to be marked by an enormous number of spelling variations. This is largely due to the fact that Old and Middle English lacked any spelling rules when Norman French was introduced in the 11th century. The languages of the English courts at that time were French and Latin. These various languages mixed quite freely in the evolving social milieu. The final element of this mix is that medieval scribes spelled words according to their sounds rather than any definite rules, so a name was often spelled in as many different ways as the number of documents it appeared in. The name was spelled Weldon, Veldon, Velton and others.
The first alloy that was formally classified as high-speed steel is known by the AISI designation T1, which was introduced in 1910.[8] It was patented by Crucible Steel Co. at the beginning of the 20th century.[2]
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In 1899 and 1900, Frederick Winslow Taylor and Maunsel White (A.K.A Maunsel White III; 1856–1912; grandson of Maunsel White; 1783–1863), working with a team of assistants at the Bethlehem Steel Company at Bethlehem, Pennsylvania, US, performed a series of experiments with heat treating existing high-quality tool steels, such as Mushet steel, heating them to much higher temperatures than were typically considered desirable in the industry.[3][4] Their experiments were characterised by a scientific empiricism in that many different combinations were made and tested, with no regard for conventional wisdom, and detailed records kept of each batch. The result was a heat treatment process that transformed existing alloys into a new kind of steel that could retain its hardness at higher temperatures, allowing cutting speed to be tripled from 30 surface feet per minute to 90. A demonstration of cutting tools made from the new steel caused a sensation at the 1900 Paris Exhibition.[5]: 200
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It is superior to high-carbon steel tools in that it can withstand higher temperatures without losing its temper (hardness). This property allows HSS to cut faster than high carbon steel, hence the name high-speed steel. At room temperature, in their generally recommended heat treatment, HSS grades generally display high hardness (above 60 Rockwell C) and abrasion resistance compared with common carbon and tool steels. There are several different types of high speed steel, such as M42 and M2.[1]
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Although molybdenum-rich high-speed steels such as AISI M1 had seen some use since the 1930s, it was the material shortages and high costs caused by WWII that spurred development of less expensive alloys substituting molybdenum for tungsten. The advances in molybdenum-based high speed steel during this period put them on par with, and in certain cases better, than tungsten-based high speed steels. This started with the use of M2 steel instead of T1 steel.[2][9]
High speed steels also found a market in fine hand tools where their relatively good toughness at high hardness, coupled with high abrasion resistance, made them suitable for low speed applications requiring a durable keen (sharp) edge, such as files, chisels, hand plane blades, and damascus kitchen knives and pocket knives.[citation needed]
The surname Weldon was first found in Northamptonshire where they held a family seat as Lords of the manor of Weldon, and are conjecturally descended from Robert de Bucy, a Norman Baron who acquired Weldon, an ancient Roman villa, from Olaf, from King William for his assistance at the Battle of Hastings in 1066."The Tower, the manorial seat of the ancient family of Welton [in Northumberland], is fast going to decay; there are still remaining in tolerable preservation, two handsome rooms with Oriel windows. The Hall, an ancient mansion which, according to an inscription on the walls, was repaired in 1614, is still occupied." 1 Welton is also a village and civil parish in the East Riding of Yorkshire which literally means "farmstead by a spring or stream." 2
In the unified numbering system (UNS), tungsten-type grades (e.g. T1, T15) are assigned numbers in the T120xx series, while molybdenum (e.g. M2, M48) and intermediate types are T113xx. ASTM standards recognize 7 tungsten types and 17 molybdenum types.[11]
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This web page shows only a small excerpt of our Weldon research. Another 30 words (2 lines of text) covering the years 1352, 1362, 1583, 1603, 1648, 1649, 1650, 1674, 1676, 1713, 1723 and 1736 are included under the topic Early Weldon History in all our PDF Extended History products and printed products wherever possible.
HSS drill bits formed by rolling are denoted HSS-R. Grinding is used to create HSS-G, cobalt and carbide drill bits.[16]