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Inside thread machining

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Normal MARGIN of number of examination questions of 0cm 0cm 0pt"> : 0cm 0cm 0pt">16normal > operates time Normal >240minnormal MARGIN of full name of 0cm 0cm 0pt"> : 0cm 0cm 0pt">normal > always divides Normal >normal MARGIN of serial number of 0cm 0cm 0pt"> : 0cm 0cm 0pt"> assesses project Normal > assesses content and requirement Normal MARGIN of standards of grading of 0cm 0cm 0pt"> : 0cm 0cm 0pt"> deserves to divide Normal > detects result Normal > notchs Normal MARGIN of remarks of 0cm 0cm 0pt"> : 0cm 0cm 0pt">1normal MARGIN of dimension of external diameter of 0cm 0cm 0pt"> : 48 Nnecttype="rect" Gradientshapeok="t" O:e of φ of 0cm 0cm 0pt">Xtrusionok="f">normal > 0.

01 buckle 2 minutes of Normal >8normal >normal >normal >normal >2normal MARGIN of φ of 0cm 0cm 0pt"> : Out of tolerance of 0cm 0cm 0pt"> 0.

01 buckle 2 minutes of Normal >8normal >normal >normal >normal >3normal MARGIN of φ of 0cm 0cm 0pt"> : Out of tolerance of 0cm 0cm 0pt"> 0.

01 buckle 2 minutes of Normal >8normal >normal >normal >normal >4normal MARGIN of φ of 0cm 0cm 0pt"> : Out of tolerance of 0cm 0cm 0pt"> 0.

01 buckle 2 minutes of Normal >8normal >normal >normal >normal >5normal MARGIN of dimension of length of 0cm 0cm 0pt"> : ± of 0cm 0cm 0pt">120 0.

1normal > does not have minute of Normal >8normal >normal >normal >normal >6normal >21 0.

1normal > does not have minute of Normal >8normal >normal >normal >normal >7normal MARGIN of dimension of whorl of 0cm 0cm 0pt"> : × of 0cm 0cm 0pt">M30 2.

5 (2 place) Normal > does not have minute of Normal >8normal >normal >normal >normal >8normal MARGIN of pitch of 0cm 0cm 0pt"> : Out of tolerance of 0cm 0cm 0pt"> does not have minute of Normal >5normal >normal >normal >normal >9normal > Normal > does not have minute of Normal >5normal >normal >normal >normal >10normal MARGIN of dimension of circular arc of 0cm 0cm 0pt"> : 0cm 0cm 0pt">R20normal > does not have minute of Normal >5normal >normal >normal >normal >11normal MARGIN of dimension of other of 0cm 0cm 0pt"> : 45 ° of × of 0cm 0cm 0pt">1 (2 place) Normal > does not have minute of Normal >2normal >normal >normal >normal >12normal >2 (2 place) Normal > does not have minute of Normal >2normal >normal >normal >normal >13normal >Ra1.

6normal > every fall one class buckles 1 minute of Normal >10normal >normal >normal >normal >14normal > produces Normal >1, abide by operating rules of machine tool safety. Normal >2, cutting tool, tool, measure sets a standard. Normal >3, equipment maintains, field is neat. Normal > buckles 1-5 to divide Normal >5normal >normal >normal >normal >15normal > is sound Normal >1, work, clamp and cutting tool choice are logical. Normal >2, treatment and line of cutting tool contrail are reasonable. Normal > buckles 1-5 to divide Normal >5normal >normal >normal >normal >16normal MARGIN of to program of 0cm 0cm 0pt"> : 0cm 0cm 0pt">1, statement is correct, the process is whole. Normal >2, several estimation calculate correct, program to write the skill with be shown certain, simplify computation and machine program. Normal >3, cutting tool is applied correct, reasonable. Normal >4, cutting, coordinate is correct, logical. Normal > buckles 1-5 to divide Normal >5normal >normal >normal >normal >17normal > (person and equipment safety accident) , disobey the cruel operation with craft principle and serious clue badly to wait, by the chief judge the decision is cancelled to hold a qualification actually. Normal >normal MARGIN of recorder of 0cm 0cm 0pt"> : 0cm 0cm 0pt">normal MARGIN of invigilator of 0cm 0cm 0pt"> : 0cm 0cm 0pt">normal MARGIN of inspector of 0cm 0cm 0pt"> : 0cm 0cm 0pt">normal > examines a Normal > one, part drawing paper analyses this spare parts to faster face surface roughness asks, and ask machine entirely, because this adopts tone,process this work. Surface of this spare parts by outside columnar, outside conic, outside groove, outside circular arc and inside circular arc, inside groove, inside the exterior composition such as whorl, it is the spare parts with more sophisticated treatment, among them many diameters dimension has stricter dimension precision. This design dimension is tagged complete, outline description is clear. Hardware data is 45 steel, without heat treatment and hardness requirement. 2, craft is analysed 1, treatment means 1) on the design given the dimension with higher demand of a few precision, its average need not be taken when process designing, and take its entirely basic measure can, the chamfer inside treatment and inside notice feed is mixed when whorl the direction that retreat a knife. Nextpage2) workpiece needs to use tune means when treatment, pass blueprint analysis, certain work left end machines a part above all, again tune machines the surface inside right end, assure overall length dimension. 2, the fixed position that hold clip pursues 1 outfit places fixed position 3, cutting tool chooses Normal Align=center> machines measure Normal Align=center> cutting tool and cutting parameter Normal MARGIN of Center" Align=center> serial number: 0cm 0cm 0pt; TEXT-INDENT: 12pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center> machines content Normal MARGIN of norms of Center" Align=center> cutting tool: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Nnormal Align=center> main shaft: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>r/minnormal MARGIN of speed of Center" Align=center> feed: 0cm 0cm 0pt; TEXT-INDENT: 12pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>mm/minnormal MARGIN of Center" Align=center> type: 0cm 0cm 0pt; TEXT-INDENT: 6pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> material: 0cm 0cm 0pt; LINE-HEIGHT: 12pt" Align=center>1normal MARGIN of surface of the circle outside Center" Align=center> rough machining: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Lathe tool of the circle outside Center" Align=center>90 ° , deputy slant horn 35 ° Normal MARGIN of Center" Align=center> horniness: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> alloy: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>500normal Align=center>100normal Align=center>2normal MARGIN of surface of the circle outside Center" Align=center> finish machining: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>1000normal Align=center>80normal Align=center>3normal MARGIN of the chamfer outside Center" Align=center> treatment: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: The groovy knife Normal Align=center>value="5" HasSpace="False" Negative="False" NumberType="1" TCSC="0">5mm: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> horniness: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> alloy: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>250normal Align=center>20normal > 4normal MARGIN of surface of the circle inside Center" Align=center> rough machining: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>90 ° bores hole knife, deputy slant horn 35 ° Normal MARGIN of Center" Align=center> horniness: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> alloy: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>500normal Align=center>100normal Align=center>5normal MARGIN of surface of the circle inside Center" Align=center> finish machining: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>1000normal Align=center>80normal Align=center>6normal MARGIN of the whorl inside Center" Align=center> treatment: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center>60 ° : 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> horniness: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> alloy: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>720normal Align=center>1.

5normal Align=center>7normal MARGIN of the chamfer inside Center" Align=center> treatment: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Of Dao Kuan of Center" Align=center>value="5" HasSpace="False" Negative="False" NumberType="1" TCSC="0">5mm inside groovy knife Normal MARGIN of Center" Align=center> horniness: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Normal Align=center> alloy: 0cm 0cm 0pt; LINE-HEIGHT: 12pt; TEXT-ALIGN: Center" Align=center>250normal Align=center>204, workpiece decides, o2 is used to be coordinate origin when machining workpiece right end, o1 is used to be coordinate origin when machining Zun Duan. Graph 2 coordinate origin 5, solid example note 1) must undertake according to the regulations system of numerical control workshop outfit of numerical control solid example, move wants to accord with a requirement strictly, 2) every student must stand fast post, do not allow to string together hillock casually, 3) when solid example must punctual have solid standard to solid example workshop, do not allow to be late with leave early. 4) the environment that should maintain center of good numerical control during solid example is wholesome, after using a machine tool, should sweep the spot and wipe a machine tool. 5) when installing work semifinished product, want to notice clamp semifinished product, prevent to trying the semifinished product when cutting to become loose, bring about attaint cutting tool. 6) the alternative that cutting dosage always should note when treatment and control, find out the most appropriate cutting parameter. 7) the dimension that control spare parts should fill through the knife when be being machined. 8) when desired effect, the solecism that should check an order and position of spot taking a knife are correct. 9) the burr that part of arris of edge of purify spare parts wants after treatment. CNC Milling