Question

Q2) a) (a) (b) Tool Direction Tool Direction Chip Flow Chip Flow Figure 3. (a) and (b) is the schematic of milling tool, showing the direction of cutting and the direction of chip flow Identify the type of milling operation represented in Figure 3(a) and Figure 3(b)? List at least 3 differences between the milling operations shown in Figure 3 (15 points) b) Why is it difficult to cut a plastic material using a bandsaw? (5 points) c) What is a spring back effect in sheet metal bending? How can we compensate for this effect? (10 points) [minimum 4 bullet points) d) List at least 8 turning operations and in a sentence explain why are they used? (15 points) e) List the types of chips formed in conventional machining process (5 point)

Answer 1

Q Identify the type illing operation represented Figure 8(a) and figures lb) List at least 3 difference between Milliy operation. Shown ein fig. figure up milling Figuel el to the In up milling proces, the Cutter rotates opposite direction of feed on the work prece Whereas eu down milliy the culter rotates an the same direction de travl ole Jee workpiece. Event the operation. up milling Rivention ole taeval The cutter notaules. ogarith the direction sa direction of travel Chip tentures piece Minimum afture Down milla The cutterrotates in the same Je workpiece travel on work aa rah beginning reaches Moniven. When the cut. terminal hogining reats Minimum ad terminals Cutting force 3 Increase from zero to more Rav Delrese tooth. man to love pew tooden

to cal a plastic It es Sow was b. Why is it difficult Material eing a Saw? Band Saw I cutter. Plastic material a) Materi terin more - depth more - difficult to cant the plastic material. The band saw Con rigut fully be plays ftal as. asamachine tool since it produces Chips and in shaping work to our needs. alliets Originally band yed for severity, work preces and doing rough Coulun Sawing But the modem band saw Ja today is a preus Machine Capable sa Reformity. a variedy a operation quite a curately. These more expensive tual hach saw but are capable faster Cutthing he consta Combin now achon maun advoulge intricate Shape, Qurred shape hand and power bead Band saw blade could be made ao Carbon Meel (fully hardendal Sew feeta and banco blade dj set ) avilable en wide variely the combination oth wider, sah, pithe and fenaand. mallity and

c what on beck on Sheet a spring melad trending: How can we comparat for duis effect If ei forming prosey Geomantre- Charges al and a Proces, If your It will hand Spring give premme Simply supportal Erample: Clutch, hean V- noten will de forned. Sulao Brand region Comprend Spiy Bach othed (ie) classics. addig spring back con factor the sake. fact Degree on freedom Oil Degree or enfrea

d List ina at tocest 8 turning operations and Sentence enplan why they are med 1. Centering I Step turniy 2. taper turniy. 2. Straight turning 3 Rough turning 2. Furth turning 5. Shoulder turning 6: Fary Chan fenny 7 tool method tail Stoen god overnay defned taper farting turns forn. affah Form lenonlig Compond turny Taper A taper Chage en fue die randersa a won kien. mecesured along its length. It ei exprend re the difference indiaunata to fue Leute, tapen es also exprend. in degrees on hala Leve enclude ayle. a radio P-d Dad es ZL conicing

Finish turning Overlike Duriany rough maching maruman meldl es removed and very divensich ý left for finish maching A rigut aut fruithing tool ej and Il es montal and Culred woth piee. Wone piece alal Stonight furning Straight tanning i fue operation de Produity a Cylindrical Surface by remony material from the outside diameter se It ei done by sofabey the Lue halfe acis and fealiy fue tool parcelel to fue In the asy Rough turning for rough funny fee rate feed the the tool ei fast and clepthah Ruhai heay. the depth oa al for turing ciaba and the head rak en om to trunm her revolution for rough turning the rough turning faol es und

Shouken furny the Hepral dianaler nok free tunnad al the Shoulder. It i Called as Shouldering as Shouldering the various types ou shoulders are. Sanane Beveled Filletal Sanara. Erechiring turning ei by Reciprocation motion from rotary motion. It ei metal for Crank Shaft, can haff oran eclambric on a Shaft, the Centre the one Cylina rei out ohnen Cylicor. taring a sucha puut Ta

the types e Chips formed in conventional maching proces 1. Condinous Chip. 2 Dis continous (hip. Continuous Chip wider build up edge 2 Buit up edge. material to weld itself to the near tue hose is called built up edge. The Chip tout face